316721320234 has 32 divisors (see below), whose sum is σ = 532434989952. Its totient is φ = 140032152000.

The previous prime is 316721320231. The next prime is 316721320247. The reversal of 316721320234 is 432023127613.

It is a self number, because there is not a number n which added to its sum of digits gives 316721320234.

It is not an unprimeable number, because it can be changed into a prime (316721320231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2802544 + ... + 2913364.

It is an arithmetic number, because the mean of its divisors is an integer number (16638593436).

Almost surely, 2^316721320234 is an apocalyptic number.

316721320234 is a deficient number, since it is larger than the sum of its proper divisors (215713669718).

316721320234 is a wasteful number, since it uses less digits than its factorization.

316721320234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114382.

The product of its (nonzero) digits is 36288, while the sum is 34.

Adding to 316721320234 its reverse (432023127613), we get a palindrome (748744447847).

The spelling of 316721320234 in words is "three hundred sixteen billion, seven hundred twenty-one million, three hundred twenty thousand, two hundred thirty-four".