21010302001 has 24 divisors (see below), whose sum is σ = 23015795264. Its totient is φ = 19065594240.

The previous prime is 21010301969. The next prime is 21010302059. The reversal of 21010302001 is 10020301012.

It is not a de Polignac number, because 21010302001 - 2⁵ = 21010301969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010302301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21726820 + ... + 21727786.

Almost surely, 2^21010302001 is an apocalyptic number.

It is an amenable number.

21010302001 is a deficient number, since it is larger than the sum of its proper divisors (2005493263).

21010302001 is an equidigital number, since it uses as much as digits as its factorization.

21010302001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 21010302001 its reverse (10020301012), we get a palindrome (31030603013).

The spelling of 21010302001 in words is "twenty-one billion, ten million, three hundred two thousand, one".