31321303120311 has 16 divisors (see below), whose sum is σ = 41774628639744. Its totient is φ = 20874423803904.

The previous prime is 31321303120279. The next prime is 31321303120351. The reversal of 31321303120311 is 11302130312313.

It is not a de Polignac number, because 31321303120311 - 2⁵ = 31321303120279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321303120351) 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, 233592090 + ... + 233726136.

It is an arithmetic number, because the mean of its divisors is an integer number (2610914289984).

Almost surely, 2^{31321303120311} is an apocalyptic number.

31321303120311 is a deficient number, since it is larger than the sum of its proper divisors (10453325519433).

31321303120311 is a wasteful number, since it uses less digits than its factorization.

31321303120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157510.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31321303120311 its reverse (11302130312313), we get a palindrome (42623433432624).

The spelling of 31321303120311 in words is "thirty-one trillion, three hundred twenty-one billion, three hundred three million, one hundred twenty thousand, three hundred eleven".