210021010231 has 16 divisors (see below), whose sum is σ = 213207160320. Its totient is φ = 206859329280.

The previous prime is 210021010223. The next prime is 210021010249. The reversal of 210021010231 is 132010120012.

It is a cyclic number.

It is not a de Polignac number, because 210021010231 - 2³ = 210021010223 is a prime.

It is a super-2 number, since 2×210021010231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021010271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41073331 + ... + 41078443.

It is an arithmetic number, because the mean of its divisors is an integer number (13325447520).

Almost surely, 2^210021010231 is an apocalyptic number.

210021010231 is a deficient number, since it is larger than the sum of its proper divisors (3186150089).

210021010231 is a wasteful number, since it uses less digits than its factorization.

210021010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7386.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 210021010231 its reverse (132010120012), we get a palindrome (342031130243).

The spelling of 210021010231 in words is "two hundred ten billion, twenty-one million, ten thousand, two hundred thirty-one".