31359713342 has 4 divisors (see below), whose sum is σ = 47039570016. Its totient is φ = 15679856670.

The previous prime is 31359713327. The next prime is 31359713401. The reversal of 31359713342 is 24331795313.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31359713342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7839928334 + ... + 7839928337.

It is an arithmetic number, because the mean of its divisors is an integer number (11759892504).

Almost surely, 2^31359713342 is an apocalyptic number.

31359713342 is a deficient number, since it is larger than the sum of its proper divisors (15679856674).

31359713342 is a wasteful number, since it uses less digits than its factorization.

31359713342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15679856673.

The product of its digits is 204120, while the sum is 41.

It can be divided in two parts, 3135971 and 3342, that added together give a palindrome (3139313).

The spelling of 31359713342 in words is "thirty-one billion, three hundred fifty-nine million, seven hundred thirteen thousand, three hundred forty-two".