231131011013142 has 32 divisors (see below), whose sum is σ = 472098701832192. Its totient is φ = 75404232853824.

The previous prime is 231131011013113. The next prime is 231131011013153. The reversal of 231131011013142 is 241310110131132.

231131011013142 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124502898 + ... + 126345690.

It is an arithmetic number, because the mean of its divisors is an integer number (14753084432256).

Almost surely, 2^{231131011013142} is an apocalyptic number.

231131011013142 is an abundant number, since it is smaller than the sum of its proper divisors (240967690819050).

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

231131011013142 is a wasteful number, since it uses less digits than its factorization.

231131011013142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287612.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 231131011013142 its reverse (241310110131132), we get a palindrome (472441121144274).

The spelling of 231131011013142 in words is "two hundred thirty-one trillion, one hundred thirty-one billion, eleven million, thirteen thousand, one hundred forty-two".