321310131231131 has 16 divisors (see below), whose sum is σ = 370849336562880. Its totient is φ = 272680394812800.

The previous prime is 321310131231079. The next prime is 321310131231181. The reversal of 321310131231131 is 131132131013123.

It is a cyclic number.

It is not a de Polignac number, because 321310131231131 - 2¹⁸ = 321310130968987 is a prime.

It is a super-2 number, since 2×321310131231131² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321310131231131.

It is not an unprimeable number, because it can be changed into a prime (321310131231181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141766745 + ... + 144015381.

It is an arithmetic number, because the mean of its divisors is an integer number (23178083535180).

Almost surely, 2^{321310131231131} is an apocalyptic number.

321310131231131 is a deficient number, since it is larger than the sum of its proper divisors (49539205331749).

321310131231131 is a wasteful number, since it uses less digits than its factorization.

321310131231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450854.

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 321310131231131 its reverse (131132131013123), we get a palindrome (452442262244254).

The spelling of 321310131231131 in words is "three hundred twenty-one trillion, three hundred ten billion, one hundred thirty-one million, two hundred thirty-one thousand, one hundred thirty-one".