21023311312201 has 24 divisors (see below), whose sum is σ = 23490305524224. Its totient is φ = 18796215900000.

The previous prime is 21023311312193. The next prime is 21023311312207. The reversal of 21023311312201 is 10221311332012.

It is not a de Polignac number, because 21023311312201 - 2³ = 21023311312193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21023311312207) 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, 54804696 + ... + 55186966.

It is an arithmetic number, because the mean of its divisors is an integer number (978762730176).

Almost surely, 2^{21023311312201} is an apocalyptic number.

It is an amenable number.

21023311312201 is a deficient number, since it is larger than the sum of its proper divisors (2466994212023).

21023311312201 is a wasteful number, since it uses less digits than its factorization.

21023311312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389805 (or 389794 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21023311312201 its reverse (10221311332012), we get a palindrome (31244622644213).

The spelling of 21023311312201 in words is "twenty-one trillion, twenty-three billion, three hundred eleven million, three hundred twelve thousand, two hundred one".