1312103303031 has 16 divisors (see below), whose sum is σ = 1884423260160. Its totient is φ = 809713116960.

The previous prime is 1312103303023. The next prime is 1312103303041. The reversal of 1312103303031 is 1303033012131.

It is not a de Polignac number, because 1312103303031 - 2³ = 1312103303023 is a prime.

It is a super-2 number, since 2×1312103303031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312103302989 and 1312103303007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312103303041) 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, 306707376 + ... + 306711653.

It is an arithmetic number, because the mean of its divisors is an integer number (117776453760).

Almost surely, 2^{1312103303031} is an apocalyptic number.

1312103303031 is a deficient number, since it is larger than the sum of its proper divisors (572319957129).

1312103303031 is a wasteful number, since it uses less digits than its factorization.

1312103303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613419086.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1312103303031 its reverse (1303033012131), we get a palindrome (2615136315162).

The spelling of 1312103303031 in words is "one trillion, three hundred twelve billion, one hundred three million, three hundred three thousand, thirty-one".