10010111101020 has 72 divisors (see below), whose sum is σ = 30677034692304. Its totient is φ = 2641843749888.

The previous prime is 10010111100967. The next prime is 10010111101031. The reversal of 10010111101020 is 2010111101001.

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 = 10010111100993 and 10010111101011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286640934 + ... + 286675853.

It is an arithmetic number, because the mean of its divisors is an integer number (426069926282).

Almost surely, 2^{10010111101020} is an apocalyptic number.

10010111101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010111101020 is an abundant number, since it is smaller than the sum of its proper divisors (20666923591284).

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

10010111101020 is a wasteful number, since it uses less digits than its factorization.

10010111101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573316899 (or 573316894 counting only the distinct ones).

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

Adding to 10010111101020 its reverse (2010111101001), we get a palindrome (12020222202021).

The spelling of 10010111101020 in words is "ten trillion, ten billion, one hundred eleven million, one hundred one thousand, twenty".