231531421241204 has 24 divisors (see below), whose sum is σ = 475578054443520. Its totient is φ = 96545920826016.

The previous prime is 231531421241101. The next prime is 231531421241209. The reversal of 231531421241204 is 402142124135132.

231531421241204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231531421241209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111742962884 + ... + 111742964955.

It is an arithmetic number, because the mean of its divisors is an integer number (19815752268480).

Almost surely, 2^{231531421241204} is an apocalyptic number.

It is an amenable number.

231531421241204 is an abundant number, since it is smaller than the sum of its proper divisors (244046633202316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231531421241204 is a wasteful number, since it uses less digits than its factorization.

231531421241204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223485927887 (or 223485927885 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 231531421241204 its reverse (402142124135132), we get a palindrome (633673545376336).

The spelling of 231531421241204 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, four hundred twenty-one million, two hundred forty-one thousand, two hundred four".