23116431 has 16 divisors (see below), whose sum is σ = 33291104. Its totient is φ = 14183424.

The previous prime is 23116417. The next prime is 23116441. The reversal of 23116431 is 13461132.

It is not a de Polignac number, because 23116431 - 2⁶ = 23116367 is a prime.

It is a super-2 number, since 2×23116431² = 1068738764355522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23116398 and 23116407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23116441) 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 15 ways as a sum of consecutive naturals, for example, 17175 + ... + 18471.

It is an arithmetic number, because the mean of its divisors is an integer number (2080694).

Almost surely, 2^23116431 is an apocalyptic number.

23116431 is a deficient number, since it is larger than the sum of its proper divisors (10174673).

23116431 is a wasteful number, since it uses less digits than its factorization.

23116431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770.

The product of its digits is 432, while the sum is 21.

The square root of 23116431 is about 4807.9549706710. The cubic root of 23116431 is about 284.8657662724.

Adding to 23116431 its reverse (13461132), we get a palindrome (36577563).

The spelling of 23116431 in words is "twenty-three million, one hundred sixteen thousand, four hundred thirty-one".