210232131222123 has 16 divisors (see below), whose sum is σ = 311469270199200. Its totient is φ = 140148336706560.

The previous prime is 210232131222109. The next prime is 210232131222149. The reversal of 210232131222123 is 321222131232012.

210232131222123 is a `hidden beast` number, since 2 + 1 + 0 + 2 + 321 + 3 + 122 + 212 + 3 = 666.

It is not a de Polignac number, because 210232131222123 - 2⁶ = 210232131222059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (210232131220123) 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, 177661638 + ... + 178841051.

It is an arithmetic number, because the mean of its divisors is an integer number (19466829387450).

Almost surely, 2^{210232131222123} is an apocalyptic number.

210232131222123 is a deficient number, since it is larger than the sum of its proper divisors (101237138977077).

210232131222123 is a wasteful number, since it uses less digits than its factorization.

210232131222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356524539 (or 356524533 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 210232131222123 its reverse (321222131232012), we get a palindrome (531454262454135).

The spelling of 210232131222123 in words is "two hundred ten trillion, two hundred thirty-two billion, one hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty-three".