12351888815322 has 64 divisors (see below), whose sum is σ = 29156167756800. Its totient is φ = 3486591631152.

The previous prime is 12351888815261. The next prime is 12351888815351. The reversal of 12351888815322 is 22351888815321.

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, 35985148 + ... + 36326775.

It is an arithmetic number, because the mean of its divisors is an integer number (455565121200).

Almost surely, 2^{12351888815322} is an apocalyptic number.

12351888815322 is an abundant number, since it is smaller than the sum of its proper divisors (16804278941478).

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

12351888815322 is an equidigital number, since it uses as much as digits as its factorization.

12351888815322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72312032 (or 72312018 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 57.

Subtracting 12351888815322 from its reverse (22351888815321), we obtain a palindrome (9999999999999).

The spelling of 12351888815322 in words is "twelve trillion, three hundred fifty-one billion, eight hundred eighty-eight million, eight hundred fifteen thousand, three hundred twenty-two".