10011010111020 has 120 divisors (see below), whose sum is σ = 31406199679008. Its totient is φ = 2669493024000.

The previous prime is 10011010111007. The next prime is 10011010111021. The reversal of 10011010111020 is 2011101011001.

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 = 10011010110993 and 10011010111011.

It is not an unprimeable number, because it can be changed into a prime (10011010111021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44065720 + ... + 44292320.

Almost surely, 2^{10011010111020} is an apocalyptic number.

10011010111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011010111020 is an abundant number, since it is smaller than the sum of its proper divisors (21395189567988).

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

10011010111020 is a wasteful number, since it uses less digits than its factorization.

10011010111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253893 (or 253882 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 10011010111020 its reverse (2011101011001), we get a palindrome (12022111122021).

The spelling of 10011010111020 in words is "ten trillion, eleven billion, ten million, one hundred eleven thousand, twenty".