1031115032120 has 16 divisors (see below), whose sum is σ = 2320008822360. Its totient is φ = 412446012832.

The previous prime is 1031115032113. The next prime is 1031115032131. The reversal of 1031115032120 is 212305111301.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1031115032092 and 1031115032101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12888937862 + ... + 12888937941.

Almost surely, 2^{1031115032120} is an apocalyptic number.

1031115032120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031115032120 is an abundant number, since it is smaller than the sum of its proper divisors (1288893790240).

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

1031115032120 is a wasteful number, since it uses less digits than its factorization.

1031115032120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25777875814 (or 25777875810 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The spelling of 1031115032120 in words is "one trillion, thirty-one billion, one hundred fifteen million, thirty-two thousand, one hundred twenty".