1312113302031 has 16 divisors (see below), whose sum is σ = 2033299065600. Its totient is φ = 737070909888.

The previous prime is 1312113301997. The next prime is 1312113302041. The reversal of 1312113302031 is 1302033112131.

It is a happy number.

It is not a de Polignac number, because 1312113302031 - 2⁹ = 1312113301519 is a prime.

It is a super-2 number, since 2×1312113302031² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1312113301989 and 1312113302007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312113302041) 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, 529503726 + ... + 529506203.

It is an arithmetic number, because the mean of its divisors is an integer number (127081191600).

Almost surely, 2^{1312113302031} is an apocalyptic number.

1312113302031 is a deficient number, since it is larger than the sum of its proper divisors (721185763569).

1312113302031 is a wasteful number, since it uses less digits than its factorization.

1312113302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059009998.

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

Adding to 1312113302031 its reverse (1302033112131), we get a palindrome (2614146414162).

The spelling of 1312113302031 in words is "one trillion, three hundred twelve billion, one hundred thirteen million, three hundred two thousand, thirty-one".