31103132321322 has 12 divisors (see below), whose sum is σ = 67390120029570. Its totient is φ = 10367710773768.

The previous prime is 31103132321291. The next prime is 31103132321323. The reversal of 31103132321322 is 22312323130113.

31103132321322 is a `hidden beast` number, since 3 + 1 + 1 + 0 + 3 + 13 + 2 + 321 + 322 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30195893216241 + 907239105081 = 5495079^2 + 952491^2 .

It is not an unprimeable number, because it can be changed into a prime (31103132321323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 863975897797 + ... + 863975897832.

Almost surely, 2^{31103132321322} is an apocalyptic number.

31103132321322 is an abundant number, since it is smaller than the sum of its proper divisors (36286987708248).

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

31103132321322 is a wasteful number, since it uses less digits than its factorization.

31103132321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727951795637 (or 1727951795634 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31103132321322 its reverse (22312323130113), we get a palindrome (53415455451435).

The spelling of 31103132321322 in words is "thirty-one trillion, one hundred three billion, one hundred thirty-two million, three hundred twenty-one thousand, three hundred twenty-two".