23821971201 has 48 divisors (see below), whose sum is σ = 39771513600. Its totient is φ = 13458441600.

The previous prime is 23821971169. The next prime is 23821971227. The reversal of 23821971201 is 10217912832.

23821971201 is a `hidden beast` number, since 2 + 382 + 1 + 9 + 71 + 201 = 666.

It is not a de Polignac number, because 23821971201 - 2⁵ = 23821971169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23821971241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5234475 + ... + 5239023.

It is an arithmetic number, because the mean of its divisors is an integer number (828573200).

Almost surely, 2^23821971201 is an apocalyptic number.

23821971201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23821971201 is a deficient number, since it is larger than the sum of its proper divisors (15949542399).

23821971201 is a wasteful number, since it uses less digits than its factorization.

23821971201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486 (or 5483 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 23821971201 in words is "twenty-three billion, eight hundred twenty-one million, nine hundred seventy-one thousand, two hundred one".