23311253 has 4 divisors (see below), whose sum is σ = 26641440. Its totient is φ = 19981068.

The previous prime is 23311237. The next prime is 23311261. The reversal of 23311253 is 35211332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23311253 - 2⁴ = 23311237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665083 + ... + 1665096.

It is an arithmetic number, because the mean of its divisors is an integer number (6660360).

Almost surely, 2^23311253 is an apocalyptic number.

It is an amenable number.

23311253 is a deficient number, since it is larger than the sum of its proper divisors (3330187).

23311253 is an equidigital number, since it uses as much as digits as its factorization.

23311253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330186.

The product of its digits is 540, while the sum is 20.

The square root of 23311253 is about 4828.1728428050. The cubic root of 23311253 is about 285.6637979718.

Adding to 23311253 its reverse (35211332), we get a palindrome (58522585).

The spelling of 23311253 in words is "twenty-three million, three hundred eleven thousand, two hundred fifty-three".