31032021100012 has 12 divisors (see below), whose sum is σ = 54720586826136. Its totient is φ = 15397567721120.

The previous prime is 31032021100007. The next prime is 31032021100013. The reversal of 31032021100012 is 21000112023013.

It is not an unprimeable number, because it can be changed into a prime (31032021100013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29610706633 + ... + 29610707680.

It is an arithmetic number, because the mean of its divisors is an integer number (4560048902178).

Almost surely, 2^{31032021100012} is an apocalyptic number.

It is an amenable number.

31032021100012 is a deficient number, since it is larger than the sum of its proper divisors (23688565726124).

31032021100012 is a wasteful number, since it uses less digits than its factorization.

31032021100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59221414448 (or 59221414446 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31032021100012 its reverse (21000112023013), we get a palindrome (52032133123025).

The spelling of 31032021100012 in words is "thirty-one trillion, thirty-two billion, twenty-one million, one hundred thousand, twelve".