231032412 has 60 divisors (see below), whose sum is σ = 650435016. Its totient is φ = 71085600.

The previous prime is 231032411. The next prime is 231032413. The reversal of 231032412 is 214230132.

231032412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231032411) and next prime (231032413).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231032411) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23214 + ... + 31637.

Almost surely, 2^231032412 is an apocalyptic number.

It is an amenable number.

231032412 is an abundant number, since it is smaller than the sum of its proper divisors (419402604).

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

231032412 is a wasteful number, since it uses less digits than its factorization.

231032412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54880 (or 54869 counting only the distinct ones).

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

The square root of 231032412 is about 15199.7503926874. The cubic root of 231032412 is about 613.6079400706.

Adding to 231032412 its reverse (214230132), we get a palindrome (445262544).

The spelling of 231032412 in words is "two hundred thirty-one million, thirty-two thousand, four hundred twelve".