231015654940 has 24 divisors (see below), whose sum is σ = 554437572192. Its totient is φ = 79205367360.

The previous prime is 231015654937. The next prime is 231015654959. The reversal of 231015654940 is 49456510132.

231015654940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 231015654893 and 231015654902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825055771 + ... + 825056050.

It is an arithmetic number, because the mean of its divisors is an integer number (23101565508).

Almost surely, 2^231015654940 is an apocalyptic number.

231015654940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231015654940 is an abundant number, since it is smaller than the sum of its proper divisors (323421917252).

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

231015654940 is a wasteful number, since it uses less digits than its factorization.

231015654940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650111837 (or 1650111835 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 231015654940 in words is "two hundred thirty-one billion, fifteen million, six hundred fifty-four thousand, nine hundred forty".