23130311 has 4 divisors (see below), whose sum is σ = 23156400. Its totient is φ = 23104224.

The previous prime is 23130287. The next prime is 23130323. The reversal of 23130311 is 11303132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23130311 - 2¹⁴ = 23113927 is a prime.

It is a super-2 number, since 2×23130311² = 1070022573913442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132311) 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, 11666 + ... + 13503.

It is an arithmetic number, because the mean of its divisors is an integer number (5789100).

Almost surely, 2^23130311 is an apocalyptic number.

23130311 is a deficient number, since it is larger than the sum of its proper divisors (26089).

23130311 is an equidigital number, since it uses as much as digits as its factorization.

23130311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26088.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 23130311 is about 4809.3981952007. The cubic root of 23130311 is about 284.9227696760.

Adding to 23130311 its reverse (11303132), we get a palindrome (34433443).

It can be divided in two parts, 2 and 3130311, that added together give a palindrome (3130313).

The spelling of 23130311 in words is "twenty-three million, one hundred thirty thousand, three hundred eleven".