231346241240 has 32 divisors (see below), whose sum is σ = 547925310000. Its totient is φ = 87668049024.

The previous prime is 231346241237. The next prime is 231346241261. The reversal of 231346241240 is 42142643132.

It is a super-3 number, since 3×231346241240³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231346241197 and 231346241206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152200715 + ... + 152202234.

Almost surely, 2^231346241240 is an apocalyptic number.

231346241240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231346241240 is an abundant number, since it is smaller than the sum of its proper divisors (316579068760).

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

231346241240 is a wasteful number, since it uses less digits than its factorization.

231346241240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304402979 (or 304402975 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 231346241240 its reverse (42142643132), we get a palindrome (273488884372).

The spelling of 231346241240 in words is "two hundred thirty-one billion, three hundred forty-six million, two hundred forty-one thousand, two hundred forty".