23223031121 has 2 divisors, whose sum is σ = 23223031122. Its totient is φ = 23223031120.

The previous prime is 23223031109. The next prime is 23223031127. The reversal of 23223031121 is 12113032232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19684090000 + 3538941121 = 140300^2 + 59489^2 .

It is a cyclic number.

It is not a de Polignac number, because 23223031121 - 2⁶ = 23223031057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23223031093 and 23223031102.

It is not a weakly prime, because it can be changed into another prime (23223031127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611515560 + 11611515561.

It is an arithmetic number, because the mean of its divisors is an integer number (11611515561).

Almost surely, 2^23223031121 is an apocalyptic number.

It is an amenable number.

23223031121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223031121 is an equidigital number, since it uses as much as digits as its factorization.

23223031121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23223031121 its reverse (12113032232), we get a palindrome (35336063353).

The spelling of 23223031121 in words is "twenty-three billion, two hundred twenty-three million, thirty-one thousand, one hundred twenty-one".