234122405251 has 4 divisors (see below), whose sum is σ = 267568463152. Its totient is φ = 200676347352.

The previous prime is 234122405221. The next prime is 234122405261. The reversal of 234122405251 is 152504221432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234122405251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234122405221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16723028940 + ... + 16723028953.

It is an arithmetic number, because the mean of its divisors is an integer number (66892115788).

Almost surely, 2^234122405251 is an apocalyptic number.

234122405251 is a deficient number, since it is larger than the sum of its proper divisors (33446057901).

234122405251 is an equidigital number, since it uses as much as digits as its factorization.

234122405251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33446057900.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 234122405251 its reverse (152504221432), we get a palindrome (386626626683).

The spelling of 234122405251 in words is "two hundred thirty-four billion, one hundred twenty-two million, four hundred five thousand, two hundred fifty-one".