121451423 has 2 divisors, whose sum is σ = 121451424. Its totient is φ = 121451422.

The previous prime is 121451399. The next prime is 121451437. The reversal of 121451423 is 324154121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121451423 - 2⁶ = 121451359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121451453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60725711 + 60725712.

It is an arithmetic number, because the mean of its divisors is an integer number (60725712).

Almost surely, 2^121451423 is an apocalyptic number.

121451423 is a deficient number, since it is larger than the sum of its proper divisors (1).

121451423 is an equidigital number, since it uses as much as digits as its factorization.

121451423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 121451423 is about 11020.5001247675. The cubic root of 121451423 is about 495.2230712433.

The spelling of 121451423 in words is "one hundred twenty-one million, four hundred fifty-one thousand, four hundred twenty-three".