31032321223312 has 10 divisors (see below), whose sum is σ = 60125122370198. Its totient is φ = 15516160611648.

The previous prime is 31032321223303. The next prime is 31032321223327. The reversal of 31032321223312 is 21332212323013.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23481234913536 + 7551086309776 = 4845744^2 + 2747924^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969760038213 + ... + 969760038244.

Almost surely, 2^{31032321223312} is an apocalyptic number.

It is an amenable number.

31032321223312 is a deficient number, since it is larger than the sum of its proper divisors (29092801146886).

31032321223312 is a wasteful number, since it uses less digits than its factorization.

31032321223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939520076465 (or 1939520076459 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 31032321223312 its reverse (21332212323013), we get a palindrome (52364533546325).

The spelling of 31032321223312 in words is "thirty-one trillion, thirty-two billion, three hundred twenty-one million, two hundred twenty-three thousand, three hundred twelve".