1031113012 has 12 divisors (see below), whose sum is σ = 1834029316. Its totient is φ = 507104640.

The previous prime is 1031112997. The next prime is 1031113021. The reversal of 1031113012 is 2103111301.

It can be written as a sum of positive squares in 2 ways, for example, as 220344336 + 810768676 = 14844^2 + 28474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1031112983 and 1031113001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2112693 + ... + 2113180.

Almost surely, 2^1031113012 is an apocalyptic number.

It is an amenable number.

1031113012 is a deficient number, since it is larger than the sum of its proper divisors (802916304).

1031113012 is a wasteful number, since it uses less digits than its factorization.

1031113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225938 (or 4225936 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1031113012 is about 32110.9484755589. The cubic root of 1031113012 is about 1010.2652677089.

Adding to 1031113012 its reverse (2103111301), we get a palindrome (3134224313).

It can be divided in two parts, 103111301 and 2, that multiplied together give a palindrome (206222602).

The spelling of 1031113012 in words is "one billion, thirty-one million, one hundred thirteen thousand, twelve".