121323013111 has 2 divisors, whose sum is σ = 121323013112. Its totient is φ = 121323013110.

The previous prime is 121323013069. The next prime is 121323013157. The reversal of 121323013111 is 111310323121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121323013111 - 2⁷ = 121323012983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121323013411) 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, 60661506555 + 60661506556.

It is an arithmetic number, because the mean of its divisors is an integer number (60661506556).

Almost surely, 2^121323013111 is an apocalyptic number.

121323013111 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323013111 is an equidigital number, since it uses as much as digits as its factorization.

121323013111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121323013111 its reverse (111310323121), we get a palindrome (232633336232).

The spelling of 121323013111 in words is "one hundred twenty-one billion, three hundred twenty-three million, thirteen thousand, one hundred eleven".