1031311113 has 16 divisors (see below), whose sum is σ = 1572519936. Its totient is φ = 588946320.

The previous prime is 1031311093. The next prime is 1031311121. The reversal of 1031311113 is 3111131301.

It is not a de Polignac number, because 1031311113 - 2⁶ = 1031311049 is a prime.

It is a super-2 number, since 2×1031311113² = 2127205223594597538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1031311092 and 1031311101.

It is not an unprimeable number, because it can be changed into a prime (1031311123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20158 + ... + 49688.

It is an arithmetic number, because the mean of its divisors is an integer number (98282496).

Almost surely, 2^1031311113 is an apocalyptic number.

It is an amenable number.

1031311113 is a deficient number, since it is larger than the sum of its proper divisors (541208823).

1031311113 is a wasteful number, since it uses less digits than its factorization.

1031311113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31204.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1031311113 is about 32114.0329606856. The cubic root of 1031311113 is about 1010.3299621190.

Adding to 1031311113 its reverse (3111131301), we get a palindrome (4142442414).

The spelling of 1031311113 in words is "one billion, thirty-one million, three hundred eleven thousand, one hundred thirteen".