231551423054121 has 8 divisors (see below), whose sum is σ = 309882945352320. Its totient is φ = 153793758062672.

The previous prime is 231551423054087. The next prime is 231551423054177. The reversal of 231551423054121 is 121450324155132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231551423054121 - 2¹⁵ = 231551423021353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231551423054121.

It is not an unprimeable number, because it can be changed into a prime (231551423054621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143464325745 + ... + 143464327358.

It is an arithmetic number, because the mean of its divisors is an integer number (38735368169040).

Almost surely, 2^{231551423054121} is an apocalyptic number.

It is an amenable number.

231551423054121 is a deficient number, since it is larger than the sum of its proper divisors (78331522298199).

231551423054121 is a wasteful number, since it uses less digits than its factorization.

231551423054121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286928653375.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 231551423054121 in words is "two hundred thirty-one trillion, five hundred fifty-one billion, four hundred twenty-three million, fifty-four thousand, one hundred twenty-one".