101010101010 has 256 divisors, whose sum is σ = 309497545728. Its totient is φ = 20528640000.

The previous prime is 101010100991. The next prime is 101010101011. The reversal of 101010101010 is 10101010101.

101010101010 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is an alternating number because its digits alternate between odd and even.

101010101010 is an undulating number in base 10.

101010101010 is a modest number, since divided by 10101010 gives 1010 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 101010101010.

It is not an unprimeable number, because it can be changed into a prime (101010101011) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10197060 + ... + 10206960.

It is an arithmetic number, because the mean of its divisors is an integer number (1208974788).

Almost surely, 2^101010101010 is an apocalyptic number.

101010101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101010101010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154748772864).

101010101010 is an abundant number, since it is smaller than the sum of its proper divisors (208487444718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101010101010 is a wasteful number, since it uses less digits than its factorization.

101010101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10069.

The product of its (nonzero) digits is 1, while the sum is 6.

Adding to 101010101010 its reverse (10101010101), we get a palindrome (111111111111).

Subtracting from 101010101010 its reverse (10101010101), we obtain a palindrome (90909090909).

The spelling of 101010101010 in words is "one hundred one billion, ten million, one hundred one thousand, ten".