121323473 has 2 divisors, whose sum is σ = 121323474. Its totient is φ = 121323472.

The previous prime is 121323409. The next prime is 121323479. The reversal of 121323473 is 374323121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79423744 + 41899729 = 8912^2 + 6473^2 .

It is a cyclic number.

It is not a de Polignac number, because 121323473 - 2⁶ = 121323409 is a prime.

It is not a weakly prime, because it can be changed into another prime (121323479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661736 + 60661737.

It is an arithmetic number, because the mean of its divisors is an integer number (60661737).

Almost surely, 2^121323473 is an apocalyptic number.

It is an amenable number.

121323473 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323473 is an equidigital number, since it uses as much as digits as its factorization.

121323473 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 121323473 is about 11014.6935045874. The cubic root of 121323473 is about 495.0491030431.

Adding to 121323473 its reverse (374323121), we get a palindrome (495646594).

The spelling of 121323473 in words is "one hundred twenty-one million, three hundred twenty-three thousand, four hundred seventy-three".