121323223331 has 2 divisors, whose sum is σ = 121323223332. Its totient is φ = 121323223330.

The previous prime is 121323223327. The next prime is 121323223339. The reversal of 121323223331 is 133322323121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121323223331 - 2² = 121323223327 is a prime.

It is a super-2 number, since 2×121323223331² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121323223331.

It is not a weakly prime, because it can be changed into another prime (121323223339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661611665 + 60661611666.

It is an arithmetic number, because the mean of its divisors is an integer number (60661611666).

Almost surely, 2^121323223331 is an apocalyptic number.

121323223331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323223331 is an equidigital number, since it uses as much as digits as its factorization.

121323223331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 26.

Adding to 121323223331 its reverse (133322323121), we get a palindrome (254645546452).

The spelling of 121323223331 in words is "one hundred twenty-one billion, three hundred twenty-three million, two hundred twenty-three thousand, three hundred thirty-one".