316001553431 has 4 divisors (see below), whose sum is σ = 317940213432. Its totient is φ = 314062893432.

The previous prime is 316001553421. The next prime is 316001553449. The reversal of 316001553431 is 134355100613.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316001553431 is a prime.

It is a super-2 number, since 2×316001553431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316001553421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969329756 + ... + 969330081.

It is an arithmetic number, because the mean of its divisors is an integer number (79485053358).

Almost surely, 2^316001553431 is an apocalyptic number.

316001553431 is a deficient number, since it is larger than the sum of its proper divisors (1938660001).

316001553431 is a wasteful number, since it uses less digits than its factorization.

316001553431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938660000.

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 316001553431 in words is "three hundred sixteen billion, one million, five hundred fifty-three thousand, four hundred thirty-one".