231340937152 has 28 divisors (see below), whose sum is σ = 494380033336. Its totient is φ = 106772739840.

The previous prime is 231340937081. The next prime is 231340937161. The reversal of 231340937152 is 251739043132.

It is a happy number.

It is a super-2 number, since 2×231340937152² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139026174 + ... + 139027837.

It is an arithmetic number, because the mean of its divisors is an integer number (17656429762).

Almost surely, 2^231340937152 is an apocalyptic number.

It is an amenable number.

231340937152 is an abundant number, since it is smaller than the sum of its proper divisors (263039096184).

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

231340937152 is a wasteful number, since it uses less digits than its factorization.

231340937152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278054036 (or 278054026 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 231340937152 in words is "two hundred thirty-one billion, three hundred forty million, nine hundred thirty-seven thousand, one hundred fifty-two".