31345326442143 has 24 divisors (see below), whose sum is σ = 51769178013696. Its totient is φ = 17903130138000.

The previous prime is 31345326442117. The next prime is 31345326442159. The reversal of 31345326442143 is 34124462354313.

31345326442143 is a `hidden beast` number, since 3 + 1 + 3 + 4 + 532 + 64 + 42 + 14 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-31345326442143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31345326442943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117712783 + ... + 117978768.

It is an arithmetic number, because the mean of its divisors is an integer number (2157049083904).

Almost surely, 2^{31345326442143} is an apocalyptic number.

31345326442143 is a deficient number, since it is larger than the sum of its proper divisors (20423851571553).

31345326442143 is a wasteful number, since it uses less digits than its factorization.

31345326442143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235693675 (or 235693672 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 45.

Adding to 31345326442143 its reverse (34124462354313), we get a palindrome (65469788796456).

The spelling of 31345326442143 in words is "thirty-one trillion, three hundred forty-five billion, three hundred twenty-six million, four hundred forty-two thousand, one hundred forty-three".