231242110142 has 4 divisors (see below), whose sum is σ = 346863165216. Its totient is φ = 115621055070.

The previous prime is 231242110133. The next prime is 231242110171. The reversal of 231242110142 is 241011242132.

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, 57810527534 + ... + 57810527537.

It is an arithmetic number, because the mean of its divisors is an integer number (86715791304).

Almost surely, 2^231242110142 is an apocalyptic number.

231242110142 is a deficient number, since it is larger than the sum of its proper divisors (115621055074).

231242110142 is a wasteful number, since it uses less digits than its factorization.

231242110142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115621055073.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 231242110142 its reverse (241011242132), we get a palindrome (472253352274).

The spelling of 231242110142 in words is "two hundred thirty-one billion, two hundred forty-two million, one hundred ten thousand, one hundred forty-two".