31210402342 has 16 divisors (see below), whose sum is σ = 54104712480. Its totient is φ = 13225595328.

The previous prime is 31210402313. The next prime is 31210402369. The reversal of 31210402342 is 24320401213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12522993 + ... + 12525484.

It is an arithmetic number, because the mean of its divisors is an integer number (3381544530).

Almost surely, 2^31210402342 is an apocalyptic number.

31210402342 is a deficient number, since it is larger than the sum of its proper divisors (22894310138).

31210402342 is a wasteful number, since it uses less digits than its factorization.

31210402342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25048575.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31210402342 its reverse (24320401213), we get a palindrome (55530803555).

The spelling of 31210402342 in words is "thirty-one billion, two hundred ten million, four hundred two thousand, three hundred forty-two".