23120457 has 8 divisors (see below), whose sum is σ = 30905760. Its totient is φ = 15374400.

The previous prime is 23120443. The next prime is 23120501. The reversal of 23120457 is 75402132.

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

It is not a de Polignac number, because 23120457 - 2⁶ = 23120393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23120557) 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, 8407 + ... + 10812.

It is an arithmetic number, because the mean of its divisors is an integer number (3863220).

Almost surely, 2^23120457 is an apocalyptic number.

It is an amenable number.

23120457 is a deficient number, since it is larger than the sum of its proper divisors (7785303).

23120457 is a wasteful number, since it uses less digits than its factorization.

23120457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19623.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 23120457 is about 4808.3736335688. The cubic root of 23120457 is about 284.8823028938.

Adding to 23120457 its reverse (75402132), we get a palindrome (98522589).

The spelling of 23120457 in words is "twenty-three million, one hundred twenty thousand, four hundred fifty-seven".