31103313112313 has 16 divisors (see below), whose sum is σ = 33666511796736. Its totient is φ = 28564587152640.

The previous prime is 31103313112307. The next prime is 31103313112321. The reversal of 31103313112313 is 31321131330113.

It is a cyclic number.

It is not a de Polignac number, because 31103313112313 - 2¹⁴ = 31103313095929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31103313112363) 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, 5769656 + ... + 9772182.

It is an arithmetic number, because the mean of its divisors is an integer number (2104156987296).

Almost surely, 2^{31103313112313} is an apocalyptic number.

It is an amenable number.

31103313112313 is a deficient number, since it is larger than the sum of its proper divisors (2563198684423).

31103313112313 is a wasteful number, since it uses less digits than its factorization.

31103313112313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005584.

The product of its (nonzero) digits is 1458, while the sum is 26.

Adding to 31103313112313 its reverse (31321131330113), we get a palindrome (62424444442426).

The spelling of 31103313112313 in words is "thirty-one trillion, one hundred three billion, three hundred thirteen million, one hundred twelve thousand, three hundred thirteen".