31311012103329 has 16 divisors (see below), whose sum is σ = 47712409381760. Its totient is φ = 17891860314240.

The previous prime is 31311012103289. The next prime is 31311012103333. The reversal of 31311012103329 is 92330121011313.

It is a happy number.

It is not a de Polignac number, because 31311012103329 - 2⁷ = 31311012103201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31311012103296 and 31311012103305.

It is not an unprimeable number, because it can be changed into a prime (31311012143329) 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, 3457702 + ... + 8635839.

It is an arithmetic number, because the mean of its divisors is an integer number (2982025586360).

Almost surely, 2^{31311012103329} is an apocalyptic number.

It is an amenable number.

31311012103329 is a deficient number, since it is larger than the sum of its proper divisors (16401397278431).

31311012103329 is a wasteful number, since it uses less digits than its factorization.

31311012103329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12216840.

The product of its (nonzero) digits is 2916, while the sum is 30.

The spelling of 31311012103329 in words is "thirty-one trillion, three hundred eleven billion, twelve million, one hundred three thousand, three hundred twenty-nine".