23142312 has 48 divisors (see below), whose sum is σ = 62948340. Its totient is φ = 7680768.

The previous prime is 23142311. The next prime is 23142313. The reversal of 23142312 is 21324132.

23142312 is a `hidden beast` number, since 231 + 423 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (23142311) and next prime (23142313).

It can be written as a sum of positive squares in 2 ways, for example, as 22524516 + 617796 = 4746^2 + 786^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (23142311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20548 + ... + 21644.

Almost surely, 2^23142312 is an apocalyptic number.

It is an amenable number.

23142312 is an abundant number, since it is smaller than the sum of its proper divisors (39806028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23142312 is a wasteful number, since it uses less digits than its factorization.

23142312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402 (or 1395 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 23142312 is about 4810.6456947067. The cubic root of 23142312 is about 284.9720378845.

Adding to 23142312 its reverse (21324132), we get a palindrome (44466444).

The spelling of 23142312 in words is "twenty-three million, one hundred forty-two thousand, three hundred twelve".