210231404253 has 48 divisors (see below), whose sum is σ = 330531679296. Its totient is φ = 127989861120.

The previous prime is 210231404239. The next prime is 210231404263. The reversal of 210231404253 is 352404132012.

210231404253 is a `hidden beast` number, since 2 + 1 + 0 + 2 + 3 + 1 + 404 + 253 = 666.

It is not a de Polignac number, because 210231404253 - 2⁴ = 210231404237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210231404263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9515926 + ... + 9537992.

It is an arithmetic number, because the mean of its divisors is an integer number (6886076652).

Almost surely, 2^210231404253 is an apocalyptic number.

It is an amenable number.

210231404253 is a deficient number, since it is larger than the sum of its proper divisors (120300275043).

210231404253 is a wasteful number, since it uses less digits than its factorization.

210231404253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22954 (or 22951 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 210231404253 its reverse (352404132012), we get a palindrome (562635536265).

The spelling of 210231404253 in words is "two hundred ten billion, two hundred thirty-one million, four hundred four thousand, two hundred fifty-three".