56201808123 has 18 divisors (see below), whose sum is σ = 84298439004. Its totient is φ = 37467867708.

The previous prime is 56201808083. The next prime is 56201808133. The reversal of 56201808123 is 32180810265.

It is a happy number.

56201808123 is a `hidden beast` number, since 5 + 620 + 1 + 8 + 0 + 8 + 1 + 23 = 666.

It is not a de Polignac number, because 56201808123 - 2¹⁴ = 56201791739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56201808133) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4276461 + ... + 4289582.

Almost surely, 2^56201808123 is an apocalyptic number.

56201808123 is a deficient number, since it is larger than the sum of its proper divisors (28096630881).

56201808123 is an frugal number, since it uses more digits than its factorization.

56201808123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8566067 (or 8566046 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 56201808123 in words is "fifty-six billion, two hundred one million, eight hundred eight thousand, one hundred twenty-three".