23317131 has 8 divisors (see below), whose sum is σ = 32161680. Its totient is φ = 15008672.

The previous prime is 23317127. The next prime is 23317153. The reversal of 23317131 is 13171332.

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

It is a cyclic number.

It is not a de Polignac number, because 23317131 - 2² = 23317127 is a prime.

It is a super-2 number, since 2×23317131² = 1087377196142322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23317098 and 23317107.

It is not an unprimeable number, because it can be changed into a prime (23317121) 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 7 ways as a sum of consecutive naturals, for example, 133920 + ... + 134093.

It is an arithmetic number, because the mean of its divisors is an integer number (4020210).

Almost surely, 2^23317131 is an apocalyptic number.

23317131 is a deficient number, since it is larger than the sum of its proper divisors (8844549).

23317131 is a wasteful number, since it uses less digits than its factorization.

23317131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268045.

The product of its digits is 378, while the sum is 21.

The square root of 23317131 is about 4828.7815233245. The cubic root of 23317131 is about 285.6878062722.

Adding to 23317131 its reverse (13171332), we get a palindrome (36488463).

It can be divided in two parts, 2 and 3317131, that added together give a palindrome (3317133).

The spelling of 23317131 in words is "twenty-three million, three hundred seventeen thousand, one hundred thirty-one".