31343240232 has 48 divisors (see below), whose sum is σ = 84906001440. Its totient is φ = 10445524128.

The previous prime is 31343240147. The next prime is 31343240251. The reversal of 31343240232 is 23204234313.

31343240232 is a `hidden beast` number, since 313 + 4 + 324 + 0 + 23 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 31343240196 and 31343240205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313803 + ... + 401445.

It is an arithmetic number, because the mean of its divisors is an integer number (1768875030).

Almost surely, 2^31343240232 is an apocalyptic number.

It is an amenable number.

31343240232 is an abundant number, since it is smaller than the sum of its proper divisors (53562761208).

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

31343240232 is a wasteful number, since it uses less digits than its factorization.

31343240232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92622 (or 92615 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 31343240232 its reverse (23204234313), we get a palindrome (54547474545).

The spelling of 31343240232 in words is "thirty-one billion, three hundred forty-three million, two hundred forty thousand, two hundred thirty-two".