312030012112 has 80 divisors (see below), whose sum is σ = 744274502272. Its totient is φ = 123406778880.

The previous prime is 312030012067. The next prime is 312030012137. The reversal of 312030012112 is 211210030213.

It is a super-2 number, since 2×312030012112² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5696278 + ... + 5750794.

Almost surely, 2^312030012112 is an apocalyptic number.

It is an amenable number.

312030012112 is an abundant number, since it is smaller than the sum of its proper divisors (432244490160).

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

312030012112 is a wasteful number, since it uses less digits than its factorization.

312030012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58476 (or 58470 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 312030012112 its reverse (211210030213), we get a palindrome (523240042325).

The spelling of 312030012112 in words is "three hundred twelve billion, thirty million, twelve thousand, one hundred twelve".