121131323 has 2 divisors, whose sum is σ = 121131324. Its totient is φ = 121131322.

The previous prime is 121131293. The next prime is 121131349. The reversal of 121131323 is 323131121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121131323 - 2¹⁸ = 120869179 is a prime.

It is not a weakly prime, because it can be changed into another prime (121131223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565661 + 60565662.

It is an arithmetic number, because the mean of its divisors is an integer number (60565662).

Almost surely, 2^121131323 is an apocalyptic number.

121131323 is a deficient number, since it is larger than the sum of its proper divisors (1).

121131323 is an equidigital number, since it uses as much as digits as its factorization.

121131323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 17.

The square root of 121131323 is about 11005.9676085295. The cubic root of 121131323 is about 494.7876149033.

Adding to 121131323 its reverse (323131121), we get a palindrome (444262444).

The spelling of 121131323 in words is "one hundred twenty-one million, one hundred thirty-one thousand, three hundred twenty-three".