23142131 has 8 divisors (see below), whose sum is σ = 23876160. Its totient is φ = 22413888.

The previous prime is 23142107. The next prime is 23142157. The reversal of 23142131 is 13124132.

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 23142131 - 2²² = 18947827 is a prime.

It is a super-2 number, since 2×23142131² = 1071116454442322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23142191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7535 + ... + 10151.

It is an arithmetic number, because the mean of its divisors is an integer number (2984520).

Almost surely, 2^23142131 is an apocalyptic number.

23142131 is a deficient number, since it is larger than the sum of its proper divisors (734029).

23142131 is a wasteful number, since it uses less digits than its factorization.

23142131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893.

The product of its digits is 144, while the sum is 17.

The square root of 23142131 is about 4810.6268822265. The cubic root of 23142131 is about 284.9712949442.

Adding to 23142131 its reverse (13124132), we get a palindrome (36266263).

The spelling of 23142131 in words is "twenty-three million, one hundred forty-two thousand, one hundred thirty-one".