1010111010920 has 128 divisors (see below), whose sum is σ = 2739348253440. Its totient is φ = 330675671040.

The previous prime is 1010111010919. The next prime is 1010111011009. The reversal of 1010111010920 is 290101110101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2763647 + ... + 3107726.

It is an arithmetic number, because the mean of its divisors is an integer number (21401158230).

Almost surely, 2^{1010111010920} is an apocalyptic number.

1010111010920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010111010920 is an abundant number, since it is smaller than the sum of its proper divisors (1729237242520).

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

1010111010920 is a wasteful number, since it uses less digits than its factorization.

1010111010920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871435 (or 5871431 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 1010111010920 in words is "one trillion, ten billion, one hundred eleven million, ten thousand, nine hundred twenty".