31431113143134 has 32 divisors (see below), whose sum is σ = 65641269957120. Its totient is φ = 10014501316512.

The previous prime is 31431113143127. The next prime is 31431113143147. The reversal of 31431113143134 is 43134131113413.

It is a junction number, because it is equal to n+sod(n) for n = 31431113143095 and 31431113143104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79495482 + ... + 79889885.

It is an arithmetic number, because the mean of its divisors is an integer number (2051289686160).

Almost surely, 2^{31431113143134} is an apocalyptic number.

31431113143134 is an abundant number, since it is smaller than the sum of its proper divisors (34210156813986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31431113143134 is a wasteful number, since it uses less digits than its factorization.

31431113143134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159386824.

The product of its digits is 15552, while the sum is 33.

Adding to 31431113143134 its reverse (43134131113413), we get a palindrome (74565244256547).

The spelling of 31431113143134 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred thirteen million, one hundred forty-three thousand, one hundred thirty-four".