23103121 has 2 divisors, whose sum is σ = 23103122. Its totient is φ = 23103120.

The previous prime is 23103103. The next prime is 23103127. The reversal of 23103121 is 12130132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20657025 + 2446096 = 4545^2 + 1564^2 .

It is a cyclic number.

It is not a de Polignac number, because 23103121 - 2⁵ = 23103089 is a prime.

It is not a weakly prime, because it can be changed into another prime (23103127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11551560 + 11551561.

It is an arithmetic number, because the mean of its divisors is an integer number (11551561).

Almost surely, 2^23103121 is an apocalyptic number.

It is an amenable number.

23103121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23103121 is an equidigital number, since it uses as much as digits as its factorization.

23103121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 23103121 is about 4806.5706069921. The cubic root of 23103121 is about 284.8110823511.

Adding to 23103121 its reverse (12130132), we get a palindrome (35233253).

The spelling of 23103121 in words is "twenty-three million, one hundred three thousand, one hundred twenty-one".