12323021204442 has 32 divisors (see below), whose sum is σ = 26542568610432. Its totient is φ = 3791602148544.

The previous prime is 12323021204423. The next prime is 12323021204479. The reversal of 12323021204442 is 24440212032321.

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, 1094908 + ... + 5083784.

It is an arithmetic number, because the mean of its divisors is an integer number (829455269076).

Almost surely, 2^{12323021204442} is an apocalyptic number.

12323021204442 is an abundant number, since it is smaller than the sum of its proper divisors (14219547405990).

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

12323021204442 is a wasteful number, since it uses less digits than its factorization.

12323021204442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028502.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 12323021204442 its reverse (24440212032321), we get a palindrome (36763233236763).

The spelling of 12323021204442 in words is "twelve trillion, three hundred twenty-three billion, twenty-one million, two hundred four thousand, four hundred forty-two".