238121430955 has 16 divisors (see below), whose sum is σ = 286034471424. Its totient is φ = 190304753760.

The previous prime is 238121430917. The next prime is 238121431007. The reversal of 238121430955 is 559034121832.

It is a happy number.

It is not a de Polignac number, because 238121430955 - 2²⁷ = 237987213227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25319284 + ... + 25328686.

It is an arithmetic number, because the mean of its divisors is an integer number (17877154464).

Almost surely, 2^238121430955 is an apocalyptic number.

238121430955 is a deficient number, since it is larger than the sum of its proper divisors (47913040469).

238121430955 is a wasteful number, since it uses less digits than its factorization.

238121430955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13986.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 238121430955 in words is "two hundred thirty-eight billion, one hundred twenty-one million, four hundred thirty thousand, nine hundred fifty-five".