1031131120113 has 24 divisors (see below), whose sum is σ = 1590312115392. Its totient is φ = 642241420128.

The previous prime is 1031131120057. The next prime is 1031131120121. The reversal of 1031131120113 is 3110211311301.

1031131120113 is a `hidden beast` number, since 10 + 311 + 311 + 20 + 1 + 13 = 666.

It is not a de Polignac number, because 1031131120113 - 2⁸ = 1031131119857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1031131120153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57913306 + ... + 57931107.

It is an arithmetic number, because the mean of its divisors is an integer number (66263004808).

Almost surely, 2^{1031131120113} is an apocalyptic number.

It is an amenable number.

1031131120113 is a deficient number, since it is larger than the sum of its proper divisors (559180995279).

1031131120113 is a wasteful number, since it uses less digits than its factorization.

1031131120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115844485 (or 115844482 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1031131120113 its reverse (3110211311301), we get a palindrome (4141342431414).

The spelling of 1031131120113 in words is "one trillion, thirty-one billion, one hundred thirty-one million, one hundred twenty thousand, one hundred thirteen".