12312100442 has 8 divisors (see below), whose sum is σ = 18469632000. Its totient is φ = 6155556444.

The previous prime is 12312100441. The next prime is 12312100459. The reversal of 12312100442 is 24400121321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12312100441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214892 + ... + 266087.

It is an arithmetic number, because the mean of its divisors is an integer number (2308704000).

Almost surely, 2^12312100442 is an apocalyptic number.

12312100442 is a deficient number, since it is larger than the sum of its proper divisors (6157531558).

12312100442 is a wasteful number, since it uses less digits than its factorization.

12312100442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493780.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12312100442 its reverse (24400121321), we get a palindrome (36712221763).

The spelling of 12312100442 in words is "twelve billion, three hundred twelve million, one hundred thousand, four hundred forty-two".