12312312031212 has 96 divisors (see below), whose sum is σ = 29264419430400. Its totient is φ = 4028261170752.

The previous prime is 12312312031207. The next prime is 12312312031289. The reversal of 12312312031212 is 21213021321321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110246833 + ... + 110358455.

It is an arithmetic number, because the mean of its divisors is an integer number (304837702400).

Almost surely, 2^{12312312031212} is an apocalyptic number.

12312312031212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12312312031212 is an abundant number, since it is smaller than the sum of its proper divisors (16952107399188).

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

12312312031212 is a wasteful number, since it uses less digits than its factorization.

12312312031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112395 (or 112393 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12312312031212 its reverse (21213021321321), we get a palindrome (33525333352533).

The spelling of 12312312031212 in words is "twelve trillion, three hundred twelve billion, three hundred twelve million, thirty-one thousand, two hundred twelve".