31122200023 has 2 divisors, whose sum is σ = 31122200024. Its totient is φ = 31122200022.

The previous prime is 31122199909. The next prime is 31122200041. The reversal of 31122200023 is 32000222113.

It is a strong prime.

It is an emirp because it is prime and its reverse (32000222113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31122200023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31122200063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15561100011 + 15561100012.

It is an arithmetic number, because the mean of its divisors is an integer number (15561100012).

Almost surely, 2^31122200023 is an apocalyptic number.

31122200023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31122200023 is an equidigital number, since it uses as much as digits as its factorization.

31122200023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31122200023 its reverse (32000222113), we get a palindrome (63122422136).

The spelling of 31122200023 in words is "thirty-one billion, one hundred twenty-two million, two hundred thousand, twenty-three".