231331430412 has 24 divisors (see below), whose sum is σ = 599748153200. Its totient is φ = 77110476768.

The previous prime is 231331430411. The next prime is 231331430413. The reversal of 231331430412 is 214034133132.

It is a happy number.

231331430412 is a `hidden beast` number, since 2 + 31 + 3 + 314 + 304 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (231331430411) and next prime (231331430413).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (231331430411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070978737 + ... + 1070978952.

Almost surely, 2^231331430412 is an apocalyptic number.

It is an amenable number.

231331430412 is an abundant number, since it is smaller than the sum of its proper divisors (368416722788).

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

231331430412 is a wasteful number, since it uses less digits than its factorization.

231331430412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141957702 (or 2141957694 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 231331430412 its reverse (214034133132), we get a palindrome (445365563544).

The spelling of 231331430412 in words is "two hundred thirty-one billion, three hundred thirty-one million, four hundred thirty thousand, four hundred twelve".