231032401142 has 4 divisors (see below), whose sum is σ = 346548601716. Its totient is φ = 115516200570.

The previous prime is 231032401139. The next prime is 231032401181. The reversal of 231032401142 is 241104230132.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57758100284 + ... + 57758100287.

It is an arithmetic number, because the mean of its divisors is an integer number (86637150429).

Almost surely, 2^231032401142 is an apocalyptic number.

231032401142 is a deficient number, since it is larger than the sum of its proper divisors (115516200574).

231032401142 is a wasteful number, since it uses less digits than its factorization.

231032401142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115516200573.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 231032401142 its reverse (241104230132), we get a palindrome (472136631274).

The spelling of 231032401142 in words is "two hundred thirty-one billion, thirty-two million, four hundred one thousand, one hundred forty-two".