31323013023311 has 12 divisors (see below), whose sum is σ = 31499322703200. Its totient is φ = 31147640008128.

The previous prime is 31323013023293. The next prime is 31323013023317. The reversal of 31323013023311 is 11332031032313.

It is not a de Polignac number, because 31323013023311 - 2¹⁸ = 31323012761167 is a prime.

It is a super-2 number, since 2×31323013023311² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323013023317) 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 11 ways as a sum of consecutive naturals, for example, 42055610 + ... + 42793928.

It is an arithmetic number, because the mean of its divisors is an integer number (2624943558600).

Almost surely, 2^{31323013023311} is an apocalyptic number.

31323013023311 is a deficient number, since it is larger than the sum of its proper divisors (176309679889).

31323013023311 is an frugal number, since it uses more digits than its factorization.

31323013023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739586 (or 739357 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31323013023311 its reverse (11332031032313), we get a palindrome (42655044055624).

The spelling of 31323013023311 in words is "thirty-one trillion, three hundred twenty-three billion, thirteen million, twenty-three thousand, three hundred eleven".