31022112223 has 2 divisors, whose sum is σ = 31022112224. Its totient is φ = 31022112222.

The previous prime is 31022112211. The next prime is 31022112229. The reversal of 31022112223 is 32221122013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31022112223 - 2²¹ = 31020015071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31022112223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31022112229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511056111 + 15511056112.

It is an arithmetic number, because the mean of its divisors is an integer number (15511056112).

Almost surely, 2^31022112223 is an apocalyptic number.

31022112223 is a deficient number, since it is larger than the sum of its proper divisors (1).

31022112223 is an equidigital number, since it uses as much as digits as its factorization.

31022112223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31022112223 its reverse (32221122013), we get a palindrome (63243234236).

The spelling of 31022112223 in words is "thirty-one billion, twenty-two million, one hundred twelve thousand, two hundred twenty-three".