312220030232 has 16 divisors (see below), whose sum is σ = 638631880200. Its totient is φ = 141918195520.

The previous prime is 312220030139. The next prime is 312220030247. The reversal of 312220030232 is 232030022213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773977357 + ... + 1773977532.

Almost surely, 2^312220030232 is an apocalyptic number.

It is an amenable number.

312220030232 is an abundant number, since it is smaller than the sum of its proper divisors (326411849968).

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

312220030232 is a wasteful number, since it uses less digits than its factorization.

312220030232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547954906 (or 3547954902 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 312220030232 its reverse (232030022213), we get a palindrome (544250052445).

The spelling of 312220030232 in words is "three hundred twelve billion, two hundred twenty million, thirty thousand, two hundred thirty-two".