23121053 has 2 divisors, whose sum is σ = 23121054. Its totient is φ = 23121052.

The previous prime is 23121047. The next prime is 23121073. The reversal of 23121053 is 35012132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14577124 + 8543929 = 3818^2 + 2923^2 .

It is a cyclic number.

It is not a de Polignac number, because 23121053 - 2⁶ = 23120989 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23121073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560526 + 11560527.

It is an arithmetic number, because the mean of its divisors is an integer number (11560527).

Almost surely, 2^23121053 is an apocalyptic number.

It is an amenable number.

23121053 is a deficient number, since it is larger than the sum of its proper divisors (1).

23121053 is an equidigital number, since it uses as much as digits as its factorization.

23121053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 23121053 is about 4808.4356083866. The cubic root of 23121053 is about 284.8847507750.

Adding to 23121053 its reverse (35012132), we get a palindrome (58133185).

The spelling of 23121053 in words is "twenty-three million, one hundred twenty-one thousand, fifty-three".