121323743 has 2 divisors, whose sum is σ = 121323744. Its totient is φ = 121323742.

The previous prime is 121323701. The next prime is 121323751. The reversal of 121323743 is 347323121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121323743 - 2⁸ = 121323487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121323143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661871 + 60661872.

It is an arithmetic number, because the mean of its divisors is an integer number (60661872).

Almost surely, 2^121323743 is an apocalyptic number.

121323743 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323743 is an equidigital number, since it uses as much as digits as its factorization.

121323743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 121323743 is about 11014.7057609361. The cubic root of 121323743 is about 495.0494702794.

Adding to 121323743 its reverse (347323121), we get a palindrome (468646864).

The spelling of 121323743 in words is "one hundred twenty-one million, three hundred twenty-three thousand, seven hundred forty-three".