121423343 has 2 divisors, whose sum is σ = 121423344. Its totient is φ = 121423342.

The previous prime is 121423331. The next prime is 121423349. The reversal of 121423343 is 343324121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121423343 - 2⁴ = 121423327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121423349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60711671 + 60711672.

It is an arithmetic number, because the mean of its divisors is an integer number (60711672).

Almost surely, 2^121423343 is an apocalyptic number.

121423343 is a deficient number, since it is larger than the sum of its proper divisors (1).

121423343 is an equidigital number, since it uses as much as digits as its factorization.

121423343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 121423343 is about 11019.2260617522. The cubic root of 121423343 is about 495.1849025244.

Adding to 121423343 its reverse (343324121), we get a palindrome (464747464).

The spelling of 121423343 in words is "one hundred twenty-one million, four hundred twenty-three thousand, three hundred forty-three".