1312022400000 has 528 divisors, whose sum is σ = 4707670752288. Its totient is φ = 322928640000.

The previous prime is 1312022399977. The next prime is 1312022400113. The reversal of 1312022400000 is 42202131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124794744 + ... + 124805256.

Almost surely, 2^{1312022400000} is an apocalyptic number.

1312022400000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312022400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2353835376144).

1312022400000 is an abundant number, since it is smaller than the sum of its proper divisors (3395648352288).

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

1312022400000 is an equidigital number, since it uses as much as digits as its factorization.

1312022400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10574 (or 10536 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1312022400000 its reverse (42202131), we get a palindrome (1312064602131).

The spelling of 1312022400000 in words is "one trillion, three hundred twelve billion, twenty-two million, four hundred thousand".