1316216523 has 16 divisors (see below), whose sum is σ = 1779843456. Its totient is φ = 865112640.

The previous prime is 1316216501. The next prime is 1316216609. The reversal of 1316216523 is 3256126131.

It is not a de Polignac number, because 1316216523 - 2⁸ = 1316216267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1316216023) 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, 58015 + ... + 77447.

It is an arithmetic number, because the mean of its divisors is an integer number (111240216).

Almost surely, 2^1316216523 is an apocalyptic number.

1316216523 is a deficient number, since it is larger than the sum of its proper divisors (463626933).

1316216523 is a wasteful number, since it uses less digits than its factorization.

1316216523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19754.

The product of its digits is 6480, while the sum is 30.

The square root of 1316216523 is about 36279.6984965421. The cubic root of 1316216523 is about 1095.9122449473.

The spelling of 1316216523 in words is "one billion, three hundred sixteen million, two hundred sixteen thousand, five hundred twenty-three".