316523440430402 has 4 divisors (see below), whose sum is σ = 474785160645606. Its totient is φ = 158261720215200.

The previous prime is 316523440430389. The next prime is 316523440430411. The reversal of 316523440430402 is 204034044325613.

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

It can be written as a sum of positive squares in only one way, i.e., 309857898933961 + 6665541496441 = 17602781^2 + 2581771^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 316523440430402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79130860107599 + ... + 79130860107602.

Almost surely, 2^{316523440430402} is an apocalyptic number.

316523440430402 is a deficient number, since it is larger than the sum of its proper divisors (158261720215204).

316523440430402 is a wasteful number, since it uses less digits than its factorization.

316523440430402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158261720215203.

The product of its (nonzero) digits is 829440, while the sum is 41.

The spelling of 316523440430402 in words is "three hundred sixteen trillion, five hundred twenty-three billion, four hundred forty million, four hundred thirty thousand, four hundred two".