11100111101010 has 48 divisors (see below), whose sum is σ = 29640296678616. Its totient is φ = 2880028825344.

The previous prime is 11100111100963. The next prime is 11100111101017. The reversal of 11100111101010 is 1010111100111.

It can be written as a sum of positive squares in 4 ways, for example, as 10736245177641 + 363865923369 = 3276621^2 + 603213^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11100111100983 and 11100111101001.

It is not an unprimeable number, because it can be changed into a prime (11100111101017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1666680019 + ... + 1666686678.

Almost surely, 2^{11100111101010} is an apocalyptic number.

11100111101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11100111101010 is an abundant number, since it is smaller than the sum of its proper divisors (18540185577606).

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

11100111101010 is a wasteful number, since it uses less digits than its factorization.

11100111101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333366747 (or 3333366744 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 11100111101010 its reverse (1010111100111), we get a palindrome (12110222201121).

The spelling of 11100111101010 in words is "eleven trillion, one hundred billion, one hundred eleven million, one hundred one thousand, ten".