12311310332442 has 128 divisors (see below), whose sum is σ = 29005948108800. Its totient is φ = 3446691494400.

The previous prime is 12311310332389. The next prime is 12311310332491. The reversal of 12311310332442 is 24423301311321.

12311310332442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4115043 + ... + 6446409.

It is an arithmetic number, because the mean of its divisors is an integer number (226608969600).

Almost surely, 2^{12311310332442} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12311310332442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14502974054400).

12311310332442 is an abundant number, since it is smaller than the sum of its proper divisors (16694637776358).

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

12311310332442 is a wasteful number, since it uses less digits than its factorization.

12311310332442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331532.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 12311310332442 its reverse (24423301311321), we get a palindrome (36734611643763).

The spelling of 12311310332442 in words is "twelve trillion, three hundred eleven billion, three hundred ten million, three hundred thirty-two thousand, four hundred forty-two".