31201222320223 has 2 divisors, whose sum is σ = 31201222320224. Its totient is φ = 31201222320222.

The previous prime is 31201222320211. The next prime is 31201222320239. The reversal of 31201222320223 is 32202322210213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31201222320223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31201222320623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15600611160111 + 15600611160112.

It is an arithmetic number, because the mean of its divisors is an integer number (15600611160112).

Almost surely, 2^{31201222320223} is an apocalyptic number.

31201222320223 is a deficient number, since it is larger than the sum of its proper divisors (1).

31201222320223 is an equidigital number, since it uses as much as digits as its factorization.

31201222320223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31201222320223 its reverse (32202322210213), we get a palindrome (63403544530436).

The spelling of 31201222320223 in words is "thirty-one trillion, two hundred one billion, two hundred twenty-two million, three hundred twenty thousand, two hundred twenty-three".