31243133134213 has 48 divisors (see below), whose sum is σ = 42276238213888. Its totient is φ = 22467467404800.

The previous prime is 31243133134189. The next prime is 31243133134243.

31243133134213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31243133134213 - 2²⁵ = 31243099579781 is a prime.

It is a super-2 number, since 2×31243133134213² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31243133134243) 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 47 ways as a sum of consecutive naturals, for example, 48380893 + ... + 49022413.

Almost surely, 2^{31243133134213} is an apocalyptic number.

It is an amenable number.

31243133134213 is a deficient number, since it is larger than the sum of its proper divisors (11033105079675).

31243133134213 is a wasteful number, since it uses less digits than its factorization.

31243133134213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645986 (or 645975 counting only the distinct ones).

The product of its digits is 46656, while the sum is 34.

It can be divided in two parts, 3124313 and 3134213, that added together give a palindrome (6258526).

The spelling of 31243133134213 in words is "thirty-one trillion, two hundred forty-three billion, one hundred thirty-three million, one hundred thirty-four thousand, two hundred thirteen".