31230310332 has 48 divisors (see below), whose sum is σ = 78518666240. Its totient is φ = 9604122048.

The previous prime is 31230310283. The next prime is 31230310339. The reversal of 31230310332 is 23301303213.

It is a junction number, because it is equal to n+sod(n) for n = 31230310299 and 31230310308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230310339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239853 + ... + 346395.

Almost surely, 2^31230310332 is an apocalyptic number.

It is an amenable number.

31230310332 is an abundant number, since it is smaller than the sum of its proper divisors (47288355908).

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

31230310332 is a wasteful number, since it uses less digits than its factorization.

31230310332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108442 (or 108440 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31230310332 its reverse (23301303213), we get a palindrome (54531613545).

The spelling of 31230310332 in words is "thirty-one billion, two hundred thirty million, three hundred ten thousand, three hundred thirty-two".