31420456664302 has 4 divisors (see below), whose sum is σ = 47130684996456. Its totient is φ = 15710228332150.

The previous prime is 31420456664299. The next prime is 31420456664357. The reversal of 31420456664302 is 20346665402413.

It is a happy number.

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

It is a super-2 number, since 2×31420456664302² (a number of 28 digits) contains 22 as substring.

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, 7855114166074 + ... + 7855114166077.

It is an arithmetic number, because the mean of its divisors is an integer number (11782671249114).

Almost surely, 2^{31420456664302} is an apocalyptic number.

31420456664302 is a deficient number, since it is larger than the sum of its proper divisors (15710228332154).

31420456664302 is a wasteful number, since it uses less digits than its factorization.

31420456664302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15710228332153.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 31420456664302 in words is "thirty-one trillion, four hundred twenty billion, four hundred fifty-six million, six hundred sixty-four thousand, three hundred two".