312142423231400 has 96 divisors (see below), whose sum is σ = 729426658810080. Its totient is φ = 124221595680000.

The previous prime is 312142423231391. The next prime is 312142423231403. The reversal of 312142423231400 is 4132324241213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (312142423231403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119014982 + ... + 121609418.

It is an arithmetic number, because the mean of its divisors is an integer number (7598194362605).

Almost surely, 2^{312142423231400} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312142423231400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364713329405040).

312142423231400 is an abundant number, since it is smaller than the sum of its proper divisors (417284235578680).

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

312142423231400 is a wasteful number, since it uses less digits than its factorization.

312142423231400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597515 (or 2597506 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 312142423231400 its reverse (4132324241213), we get a palindrome (316274747472613).

The spelling of 312142423231400 in words is "three hundred twelve trillion, one hundred forty-two billion, four hundred twenty-three million, two hundred thirty-one thousand, four hundred".