312233312000 has 72 divisors (see below), whose sum is σ = 777812289072. Its totient is φ = 124893312000.

The previous prime is 312233311997. The next prime is 312233312003. The reversal of 312233312000 is 213332213.

It is an interprime number because it is at equal distance from previous prime (312233311997) and next prime (312233312003).

It is a super-2 number, since 2×312233312000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312233312003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4846646 + ... + 4910645.

Almost surely, 2^312233312000 is an apocalyptic number.

It is an amenable number.

312233312000 is an abundant number, since it is smaller than the sum of its proper divisors (465578977072).

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

312233312000 is an frugal number, since it uses more digits than its factorization.

312233312000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9757322 (or 9757298 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 312233312000 its reverse (213332213), we get a palindrome (312446644213).

The spelling of 312233312000 in words is "three hundred twelve billion, two hundred thirty-three million, three hundred twelve thousand".