1320243121422 has 128 divisors (see below), whose sum is σ = 3114054720000. Its totient is φ = 414104520960.

The previous prime is 1320243121367. The next prime is 1320243121423. The reversal of 1320243121422 is 2241213420231.

1320243121422 is a `hidden beast` number, since 1 + 3 + 202 + 4 + 31 + 2 + 1 + 422 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320243121423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6827829 + ... + 7018527.

It is an arithmetic number, because the mean of its divisors is an integer number (24328552500).

Almost surely, 2^{1320243121422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320243121422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557027360000).

1320243121422 is an abundant number, since it is smaller than the sum of its proper divisors (1793811598578).

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

1320243121422 is a wasteful number, since it uses less digits than its factorization.

1320243121422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190863 (or 190857 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1320243121422 its reverse (2241213420231), we get a palindrome (3561456541653).

The spelling of 1320243121422 in words is "one trillion, three hundred twenty billion, two hundred forty-three million, one hundred twenty-one thousand, four hundred twenty-two".