312810001812 has 108 divisors (see below), whose sum is σ = 1003429548576. Its totient is φ = 81249346080.

The previous prime is 312810001811. The next prime is 312810001817. The reversal of 312810001812 is 218100018213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312810001811) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8041048 + ... + 8079855.

Almost surely, 2^312810001812 is an apocalyptic number.

It is an amenable number.

312810001812 is an abundant number, since it is smaller than the sum of its proper divisors (690619546764).

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

312810001812 is a wasteful number, since it uses less digits than its factorization.

312810001812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16120938 (or 16120926 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The spelling of 312810001812 in words is "three hundred twelve billion, eight hundred ten million, one thousand, eight hundred twelve".