21314504001 has 48 divisors (see below), whose sum is σ = 34890721920. Its totient is φ = 11334174720.

The previous prime is 21314503963. The next prime is 21314504017. The reversal of 21314504001 is 10040541312.

It is not a de Polignac number, because 21314504001 - 2⁶ = 21314503937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (21314504021) 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, 520411 + ... + 559871.

It is an arithmetic number, because the mean of its divisors is an integer number (726890040).

Almost surely, 2^21314504001 is an apocalyptic number.

21314504001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21314504001 is a deficient number, since it is larger than the sum of its proper divisors (13576217919).

21314504001 is a wasteful number, since it uses less digits than its factorization.

21314504001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39594 (or 39577 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The spelling of 21314504001 in words is "twenty-one billion, three hundred fourteen million, five hundred four thousand, one".