231142023040 has 64 divisors (see below), whose sum is σ = 552835744560. Its totient is φ = 92412997632.

The previous prime is 231142023031. The next prime is 231142023041. The reversal of 231142023040 is 40320241132.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231142023041) 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, 1283179 + ... + 1452181.

Almost surely, 2^231142023040 is an apocalyptic number.

231142023040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231142023040 is an abundant number, since it is smaller than the sum of its proper divisors (321693721520).

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

231142023040 is a wasteful number, since it uses less digits than its factorization.

231142023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171159 (or 171147 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 231142023040 its reverse (40320241132), we get a palindrome (271462264172).

The spelling of 231142023040 in words is "two hundred thirty-one billion, one hundred forty-two million, twenty-three thousand, forty".