210232623251 has 12 divisors (see below), whose sum is σ = 255189201552. Its totient is φ = 172364634288.

The previous prime is 210232623217. The next prime is 210232623269. The reversal of 210232623251 is 152326232012.

It is a de Polignac number, because none of the positive numbers 2^k-210232623251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210232623551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93269780 + ... + 93272033.

It is an arithmetic number, because the mean of its divisors is an integer number (21265766796).

Almost surely, 2^210232623251 is an apocalyptic number.

210232623251 is a deficient number, since it is larger than the sum of its proper divisors (44956578301).

210232623251 is a wasteful number, since it uses less digits than its factorization.

210232623251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186541850 (or 186541843 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 210232623251 its reverse (152326232012), we get a palindrome (362558855263).

The spelling of 210232623251 in words is "two hundred ten billion, two hundred thirty-two million, six hundred twenty-three thousand, two hundred fifty-one".