231242240032 has 12 divisors (see below), whose sum is σ = 455258160126. Its totient is φ = 115621120000.

The previous prime is 231242240023. The next prime is 231242240041. The reversal of 231242240032 is 230042242132.

It is an interprime number because it is at equal distance from previous prime (231242240023) and next prime (231242240041).

It can be written as a sum of positive squares in only one way, i.e., 231241727376 + 512656 = 480876^2 + 716^2 .

It is a super-2 number, since 2×231242240032² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (25) 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 = 231242239979 and 231242240006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3613159969 + ... + 3613160032.

Almost surely, 2^231242240032 is an apocalyptic number.

It is an amenable number.

231242240032 is a deficient number, since it is larger than the sum of its proper divisors (224015920094).

231242240032 is an equidigital number, since it uses as much as digits as its factorization.

231242240032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7226320011 (or 7226320003 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 231242240032 its reverse (230042242132), we get a palindrome (461284482164).

The spelling of 231242240032 in words is "two hundred thirty-one billion, two hundred forty-two million, two hundred forty thousand, thirty-two".