1031981311080 has 128 divisors (see below), whose sum is σ = 3523838774400. Its totient is φ = 268482931200.

The previous prime is 1031981311073. The next prime is 1031981311091. The reversal of 1031981311080 is 801131891301.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 11608626 + ... + 11697185.

It is an arithmetic number, because the mean of its divisors is an integer number (27529990425).

Almost surely, 2^{1031981311080} is an apocalyptic number.

1031981311080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031981311080 is an abundant number, since it is smaller than the sum of its proper divisors (2491857463320).

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

1031981311080 is a wasteful number, since it uses less digits than its factorization.

1031981311080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23305872 (or 23305862 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The spelling of 1031981311080 in words is "one trillion, thirty-one billion, nine hundred eighty-one million, three hundred eleven thousand, eighty".