121320233311 has 2 divisors, whose sum is σ = 121320233312. Its totient is φ = 121320233310.

The previous prime is 121320233269. The next prime is 121320233323. The reversal of 121320233311 is 113332023121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121320233311 - 2²⁵ = 121286678879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121320233011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660116655 + 60660116656.

It is an arithmetic number, because the mean of its divisors is an integer number (60660116656).

Almost surely, 2^121320233311 is an apocalyptic number.

121320233311 is a deficient number, since it is larger than the sum of its proper divisors (1).

121320233311 is an equidigital number, since it uses as much as digits as its factorization.

121320233311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121320233311 its reverse (113332023121), we get a palindrome (234652256432).

The spelling of 121320233311 in words is "one hundred twenty-one billion, three hundred twenty million, two hundred thirty-three thousand, three hundred eleven".