231163243040 has 48 divisors (see below), whose sum is σ = 546202462680. Its totient is φ = 92451870720.

The previous prime is 231163243027. The next prime is 231163243097. The reversal of 231163243040 is 40342361132.

It can be written as a sum of positive squares in 4 ways, for example, as 211405004944 + 19758238096 = 459788^2 + 140564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231163242994 and 231163243012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039310 + ... + 1241970.

Almost surely, 2^231163243040 is an apocalyptic number.

231163243040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231163243040 is an abundant number, since it is smaller than the sum of its proper divisors (315039219640).

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

231163243040 is a wasteful number, since it uses less digits than its factorization.

231163243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209805 (or 209797 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The spelling of 231163243040 in words is "two hundred thirty-one billion, one hundred sixty-three million, two hundred forty-three thousand, forty".