23120253 has 12 divisors (see below), whose sum is σ = 35965020. Its totient is φ = 14227776.

The previous prime is 23120249. The next prime is 23120299. The reversal of 23120253 is 35202132.

It can be written as a sum of positive squares in 2 ways, for example, as 5631129 + 17489124 = 2373^2 + 4182^2 .

It is not a de Polignac number, because 23120253 - 2² = 23120249 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98688 + ... + 98921.

It is an arithmetic number, because the mean of its divisors is an integer number (2997085).

Almost surely, 2^23120253 is an apocalyptic number.

It is an amenable number.

23120253 is a deficient number, since it is larger than the sum of its proper divisors (12844767).

23120253 is a wasteful number, since it uses less digits than its factorization.

23120253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197628 (or 197625 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23120253 is about 4808.3524205283. The cubic root of 23120253 is about 284.8814650188.

Adding to 23120253 its reverse (35202132), we get a palindrome (58322385).

The spelling of 23120253 in words is "twenty-three million, one hundred twenty thousand, two hundred fifty-three".