12312030000 has 100 divisors (see below), whose sum is σ = 39744971288. Its totient is φ = 3283200000.

The previous prime is 12312029993. The next prime is 12312030023. The reversal of 12312030000 is 3021321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 175201 + ... + 235200.

Almost surely, 2^12312030000 is an apocalyptic number.

12312030000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312030000 is an abundant number, since it is smaller than the sum of its proper divisors (27432941288).

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

12312030000 is an equidigital number, since it uses as much as digits as its factorization.

12312030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410432 (or 410411 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 12312030000 its reverse (3021321), we get a palindrome (12315051321).

The spelling of 12312030000 in words is "twelve billion, three hundred twelve million, thirty thousand".