12312003001232 has 80 divisors (see below), whose sum is σ = 26154542192640. Its totient is φ = 5568153321600.

The previous prime is 12312003001223. The next prime is 12312003001253. The reversal of 12312003001232 is 23210030021321.

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, 35072693 + ... + 35421995.

It is an arithmetic number, because the mean of its divisors is an integer number (326931777408).

Almost surely, 2^{12312003001232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12312003001232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13077271096320).

12312003001232 is an abundant number, since it is smaller than the sum of its proper divisors (13842539191408).

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

12312003001232 is a wasteful number, since it uses less digits than its factorization.

12312003001232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350332 (or 350326 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12312003001232 its reverse (23210030021321), we get a palindrome (35522033022553).

The spelling of 12312003001232 in words is "twelve trillion, three hundred twelve billion, three million, one thousand, two hundred thirty-two".