31321230013132 has 12 divisors (see below), whose sum is σ = 55584154671696. Its totient is φ = 15440042964080.

The previous prime is 31321230013091. The next prime is 31321230013253. The reversal of 31321230013132 is 23131003212313.

It is a junction number, because it is equal to n+sod(n) for n = 31321230013097 and 31321230013106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55143010303 + ... + 55143010870.

It is an arithmetic number, because the mean of its divisors is an integer number (4632012889308).

Almost surely, 2^{31321230013132} is an apocalyptic number.

It is an amenable number.

31321230013132 is a deficient number, since it is larger than the sum of its proper divisors (24262924658564).

31321230013132 is a wasteful number, since it uses less digits than its factorization.

31321230013132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110286021248 (or 110286021246 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31321230013132 its reverse (23131003212313), we get a palindrome (54452233225445).

The spelling of 31321230013132 in words is "thirty-one trillion, three hundred twenty-one billion, two hundred thirty million, thirteen thousand, one hundred thirty-two".