230142312 has 24 divisors (see below), whose sum is σ = 623302290. Its totient is φ = 76714080.

The previous prime is 230142299. The next prime is 230142313. The reversal of 230142312 is 213241032.

230142312 is a `hidden beast` number, since 230 + 1 + 423 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 142420356 + 87721956 = 11934^2 + 9366^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (230142313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1598139 + ... + 1598282.

Almost surely, 2^230142312 is an apocalyptic number.

It is an amenable number.

230142312 is an abundant number, since it is smaller than the sum of its proper divisors (393159978).

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

230142312 is a wasteful number, since it uses less digits than its factorization.

230142312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196433 (or 3196426 counting only the distinct ones).

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

The square root of 230142312 is about 15170.4420502502. The cubic root of 230142312 is about 612.8189088667.

Adding to 230142312 its reverse (213241032), we get a palindrome (443383344).

The spelling of 230142312 in words is "two hundred thirty million, one hundred forty-two thousand, three hundred twelve".