210103320231 has 24 divisors (see below), whose sum is σ = 359683053184. Its totient is φ = 120059039160.

The previous prime is 210103320227. The next prime is 210103320269. The reversal of 210103320231 is 132023301012.

210103320231 is a `hidden beast` number, since 2 + 10 + 103 + 320 + 231 = 666.

It is not a de Polignac number, because 210103320231 - 2² = 210103320227 is a prime.

It is a super-2 number, since 2×210103320231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210103320211) 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, 61757065 + ... + 61760466.

Almost surely, 2^210103320231 is an apocalyptic number.

210103320231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

210103320231 is a deficient number, since it is larger than the sum of its proper divisors (149579732953).

210103320231 is an equidigital number, since it uses as much as digits as its factorization.

210103320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123517553 (or 123517541 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 210103320231 its reverse (132023301012), we get a palindrome (342126621243).

The spelling of 210103320231 in words is "two hundred ten billion, one hundred three million, three hundred twenty thousand, two hundred thirty-one".