23913121 has 8 divisors (see below), whose sum is σ = 25025024. Its totient is φ = 22822560.

The previous prime is 23913103. The next prime is 23913157. The reversal of 23913121 is 12131932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23913121 - 2¹³ = 23904929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23913092 and 23913101.

It is not an unprimeable number, because it can be changed into a prime (23913181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3021 + ... + 7546.

It is an arithmetic number, because the mean of its divisors is an integer number (3128128).

Almost surely, 2^23913121 is an apocalyptic number.

It is an amenable number.

23913121 is a deficient number, since it is larger than the sum of its proper divisors (1111903).

23913121 is a wasteful number, since it uses less digits than its factorization.

23913121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10671.

The product of its digits is 324, while the sum is 22.

The square root of 23913121 is about 4890.1043956137. The cubic root of 23913121 is about 288.1014343385.

The spelling of 23913121 in words is "twenty-three million, nine hundred thirteen thousand, one hundred twenty-one".