1031312331120 has 80 divisors (see below), whose sum is σ = 3244785713280. Its totient is φ = 270911891712.

The previous prime is 1031312331109. The next prime is 1031312331149. The reversal of 1031312331120 is 211332131301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32052090 + ... + 32084249.

It is an arithmetic number, because the mean of its divisors is an integer number (40559821416).

Almost surely, 2^{1031312331120} is an apocalyptic number.

1031312331120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031312331120 is an abundant number, since it is smaller than the sum of its proper divisors (2213473382160).

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

1031312331120 is a wasteful number, since it uses less digits than its factorization.

1031312331120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64136422 (or 64136416 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1031312331120 its reverse (211332131301), we get a palindrome (1242644462421).

The spelling of 1031312331120 in words is "one trillion, thirty-one billion, three hundred twelve million, three hundred thirty-one thousand, one hundred twenty".