1320243122044 has 24 divisors (see below), whose sum is σ = 2880530448768. Its totient is φ = 514380437040.

The previous prime is 1320243121999. The next prime is 1320243122053. The reversal of 1320243122044 is 4402213420231.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2143251514 + ... + 2143252129.

It is an arithmetic number, because the mean of its divisors is an integer number (120022102032).

Almost surely, 2^{1320243122044} is an apocalyptic number.

1320243122044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1320243122044 is an abundant number, since it is smaller than the sum of its proper divisors (1560287326724).

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

1320243122044 is a wasteful number, since it uses less digits than its factorization.

1320243122044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286503665 (or 4286503663 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1320243122044 its reverse (4402213420231), we get a palindrome (5722456542275).

The spelling of 1320243122044 in words is "one trillion, three hundred twenty billion, two hundred forty-three million, one hundred twenty-two thousand, forty-four".