31342440355 has 8 divisors (see below), whose sum is σ = 37612407600. Its totient is φ = 25072966176.

The previous prime is 31342440319. The next prime is 31342440373. The reversal of 31342440355 is 55304424313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31342440355 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31342440355.

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, 35076 + ... + 252814.

It is an arithmetic number, because the mean of its divisors is an integer number (4701550950).

Almost surely, 2^31342440355 is an apocalyptic number.

31342440355 is a deficient number, since it is larger than the sum of its proper divisors (6269967245).

31342440355 is a wasteful number, since it uses less digits than its factorization.

31342440355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246533.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 31342440355 its reverse (55304424313), we get a palindrome (86646864668).

The spelling of 31342440355 in words is "thirty-one billion, three hundred forty-two million, four hundred forty thousand, three hundred fifty-five".