1031112513 has 12 divisors (see below), whose sum is σ = 1511615248. Its totient is φ = 677148120.

The previous prime is 1031112493. The next prime is 1031112521. The reversal of 1031112513 is 3152111301.

1031112513 is a `hidden beast` number, since 10 + 31 + 112 + 513 = 666.

It is not a de Polignac number, because 1031112513 - 2⁶ = 1031112449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031112583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 854383 + ... + 855588.

Almost surely, 2^1031112513 is an apocalyptic number.

It is an amenable number.

1031112513 is a deficient number, since it is larger than the sum of its proper divisors (480502735).

1031112513 is a wasteful number, since it uses less digits than its factorization.

1031112513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710044 (or 1710041 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1031112513 is about 32110.9407056224. The cubic root of 1031112513 is about 1010.2651047386.

Adding to 1031112513 its reverse (3152111301), we get a palindrome (4183223814).

The spelling of 1031112513 in words is "one billion, thirty-one million, one hundred twelve thousand, five hundred thirteen".