21302504001 has 6 divisors (see below), whose sum is σ = 30770283570. Its totient is φ = 14201669328.

The previous prime is 21302503993. The next prime is 21302504011. The reversal of 21302504001 is 10040520312.

21302504001 is a `hidden beast` number, since 2 + 13 + 0 + 250 + 400 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20421839025 + 880664976 = 142905^2 + 29676^2 .

It is not a de Polignac number, because 21302504001 - 2³ = 21302503993 is a prime.

It is a super-3 number, since 3×21302504001³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21302504011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1183472436 + ... + 1183472453.

It is an arithmetic number, because the mean of its divisors is an integer number (5128380595).

Almost surely, 2^21302504001 is an apocalyptic number.

It is an amenable number.

21302504001 is a deficient number, since it is larger than the sum of its proper divisors (9467779569).

21302504001 is a wasteful number, since it uses less digits than its factorization.

21302504001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366944895 (or 2366944892 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The spelling of 21302504001 in words is "twenty-one billion, three hundred two million, five hundred four thousand, one".