1312113303031 has 4 divisors (see below), whose sum is σ = 1312864371352. Its totient is φ = 1311362234712.

The previous prime is 1312113302977. The next prime is 1312113303037. The reversal of 1312113303031 is 1303033112131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312113303031 - 2¹⁵ = 1312113270263 is a prime.

It is a super-2 number, since 2×1312113303031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312113302993 and 1312113303011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312113303037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375531540 + ... + 375535033.

It is an arithmetic number, because the mean of its divisors is an integer number (328216092838).

Almost surely, 2^{1312113303031} is an apocalyptic number.

1312113303031 is a deficient number, since it is larger than the sum of its proper divisors (751068321).

1312113303031 is an equidigital number, since it uses as much as digits as its factorization.

1312113303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751068320.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1312113303031 its reverse (1303033112131), we get a palindrome (2615146415162).

The spelling of 1312113303031 in words is "one trillion, three hundred twelve billion, one hundred thirteen million, three hundred three thousand, thirty-one".