23131401 has 8 divisors (see below), whose sum is σ = 31675584. Its totient is φ = 15004080.

The previous prime is 23131393. The next prime is 23131429. The reversal of 23131401 is 10413132.

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

It is not a de Polignac number, because 23131401 - 2³ = 23131393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23131001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104085 + ... + 104306.

It is an arithmetic number, because the mean of its divisors is an integer number (3959448).

Almost surely, 2^23131401 is an apocalyptic number.

It is an amenable number.

23131401 is a deficient number, since it is larger than the sum of its proper divisors (8544183).

23131401 is a wasteful number, since it uses less digits than its factorization.

23131401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208431.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 23131401 is about 4809.5115136571. The cubic root of 23131401 is about 284.9272452022.

Adding to 23131401 its reverse (10413132), we get a palindrome (33544533).

It can be divided in two parts, 23131 and 401, that added together give a palindrome (23532).

The spelling of 23131401 in words is "twenty-three million, one hundred thirty-one thousand, four hundred one".