23451121 has 2 divisors, whose sum is σ = 23451122. Its totient is φ = 23451120.

The previous prime is 23451067. The next prime is 23451133. The reversal of 23451121 is 12115432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12960000 + 10491121 = 3600^2 + 3239^2 .

It is a cyclic number.

It is not a de Polignac number, because 23451121 - 2¹³ = 23442929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23454121) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11725560 + 11725561.

It is an arithmetic number, because the mean of its divisors is an integer number (11725561).

Almost surely, 2^23451121 is an apocalyptic number.

It is an amenable number.

23451121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23451121 is an equidigital number, since it uses as much as digits as its factorization.

23451121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 23451121 is about 4842.6357492589. The cubic root of 23451121 is about 286.2339886673.

Adding to 23451121 its reverse (12115432), we get a palindrome (35566553).

The spelling of 23451121 in words is "twenty-three million, four hundred fifty-one thousand, one hundred twenty-one".