31231123001322 has 16 divisors (see below), whose sum is σ = 62462666488320. Its totient is φ = 10410304252832.

The previous prime is 31231123001257. The next prime is 31231123001341. The reversal of 31231123001322 is 22310032113213.

It is a junction number, because it is equal to n+sod(n) for n = 31231123001292 and 31231123001301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16550547 + ... + 18340742.

It is an arithmetic number, because the mean of its divisors is an integer number (3903916655520).

Almost surely, 2^{31231123001322} is an apocalyptic number.

31231123001322 is an abundant number, since it is smaller than the sum of its proper divisors (31231543486998).

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

31231123001322 is a wasteful number, since it uses less digits than its factorization.

31231123001322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35040477.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31231123001322 its reverse (22310032113213), we get a palindrome (53541155114535).

The spelling of 31231123001322 in words is "thirty-one trillion, two hundred thirty-one billion, one hundred twenty-three million, one thousand, three hundred twenty-two".