31223320022123 has 16 divisors (see below), whose sum is σ = 31697482692096. Its totient is φ = 30752745718080.

The previous prime is 31223320022119. The next prime is 31223320022131. The reversal of 31223320022123 is 32122002332213.

It is a cyclic number.

It is not a de Polignac number, because 31223320022123 - 2² = 31223320022119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31223320022092 and 31223320022101.

It is not an unprimeable number, because it can be changed into a prime (31223320022023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20553728 + ... + 22020498.

It is an arithmetic number, because the mean of its divisors is an integer number (1981092668256).

Almost surely, 2^{31223320022123} is an apocalyptic number.

31223320022123 is a deficient number, since it is larger than the sum of its proper divisors (474162669973).

31223320022123 is a wasteful number, since it uses less digits than its factorization.

31223320022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467994.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31223320022123 its reverse (32122002332213), we get a palindrome (63345322354336).

The spelling of 31223320022123 in words is "thirty-one trillion, two hundred twenty-three billion, three hundred twenty million, twenty-two thousand, one hundred twenty-three".