31436238342 has 16 divisors (see below), whose sum is σ = 63135544320. Its totient is φ = 10434901512.

The previous prime is 31436238271. The next prime is 31436238349. The reversal of 31436238342 is 24383263413.

It is a self number, because there is not a number n which added to its sum of digits gives 31436238342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31436238349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10959598 + ... + 10962465.

It is an arithmetic number, because the mean of its divisors is an integer number (3945971520).

Almost surely, 2^31436238342 is an apocalyptic number.

31436238342 is an abundant number, since it is smaller than the sum of its proper divisors (31699305978).

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

31436238342 is a wasteful number, since it uses less digits than its factorization.

31436238342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21922307.

The product of its digits is 248832, while the sum is 39.

The spelling of 31436238342 in words is "thirty-one billion, four hundred thirty-six million, two hundred thirty-eight thousand, three hundred forty-two".