12012312320322 has 32 divisors (see below), whose sum is σ = 24856500542400. Its totient is φ = 3865496351808.

The previous prime is 12012312320321. The next prime is 12012312320341. The reversal of 12012312320322 is 22302321321021.

It is a junction number, because it is equal to n+sod(n) for n = 12012312320292 and 12012312320301.

It is not an unprimeable number, because it can be changed into a prime (12012312320321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3517108 + ... + 6032799.

It is an arithmetic number, because the mean of its divisors is an integer number (776765641950).

Almost surely, 2^{12012312320322} is an apocalyptic number.

12012312320322 is an abundant number, since it is smaller than the sum of its proper divisors (12844188222078).

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

12012312320322 is a wasteful number, since it uses less digits than its factorization.

12012312320322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9557170.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12012312320322 its reverse (22302321321021), we get a palindrome (34314633641343).

The spelling of 12012312320322 in words is "twelve trillion, twelve billion, three hundred twelve million, three hundred twenty thousand, three hundred twenty-two".