20316286523 has 16 divisors (see below), whose sum is σ = 21964219200. Its totient is φ = 18680664960.

The previous prime is 20316286517. The next prime is 20316286547. The reversal of 20316286523 is 32568261302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20316286523 - 2²⁸ = 20047851067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20316289523) 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, 4043753 + ... + 4048773.

It is an arithmetic number, because the mean of its divisors is an integer number (1372763700).

Almost surely, 2^20316286523 is an apocalyptic number.

20316286523 is a deficient number, since it is larger than the sum of its proper divisors (1647932677).

20316286523 is a wasteful number, since it uses less digits than its factorization.

20316286523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6182.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 20316286523 in words is "twenty billion, three hundred sixteen million, two hundred eighty-six thousand, five hundred twenty-three".