10010101020 has 48 divisors (see below), whose sum is σ = 28118458368. Its totient is φ = 2660772160.

The previous prime is 10010101019. The next prime is 10010101061. The reversal of 10010101020 is 2010101001.

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

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249564 + ... + 286883.

It is an arithmetic number, because the mean of its divisors is an integer number (585801216).

Almost surely, 2^10010101020 is an apocalyptic number.

10010101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010101020 is an abundant number, since it is smaller than the sum of its proper divisors (18108357348).

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

10010101020 is a wasteful number, since it uses less digits than its factorization.

10010101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536770 (or 536768 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 10010101020 its reverse (2010101001), we get a palindrome (12020202021).

The spelling of 10010101020 in words is "ten billion, ten million, one hundred one thousand, twenty".