23202211220231 has 2 divisors, whose sum is σ = 23202211220232. Its totient is φ = 23202211220230.

The previous prime is 23202211220179. The next prime is 23202211220281. The reversal of 23202211220231 is 13202211220232.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23202211220231 is a prime.

It is a super-2 number, since 2×23202211220231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23202211220197 and 23202211220206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23202211220281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601105610115 + 11601105610116.

It is an arithmetic number, because the mean of its divisors is an integer number (11601105610116).

Almost surely, 2^{23202211220231} is an apocalyptic number.

23202211220231 is a deficient number, since it is larger than the sum of its proper divisors (1).

23202211220231 is an equidigital number, since it uses as much as digits as its factorization.

23202211220231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 23202211220231 its reverse (13202211220232), we get a palindrome (36404422440463).

Subtracting from 23202211220231 its reverse (13202211220232), we obtain a palindrome (9999999999999).

The spelling of 23202211220231 in words is "twenty-three trillion, two hundred two billion, two hundred eleven million, two hundred twenty thousand, two hundred thirty-one".