1320434201044 has 72 divisors (see below), whose sum is σ = 2694593895840. Its totient is φ = 564519340224.

The previous prime is 1320434201033. The next prime is 1320434201063. The reversal of 1320434201044 is 4401024340231.

It is a super-2 number, since 2×1320434201044² (a number of 25 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 194779647 + ... + 194786425.

It is an arithmetic number, because the mean of its divisors is an integer number (37424915220).

Almost surely, 2^{1320434201044} is an apocalyptic number.

1320434201044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1320434201044 is an abundant number, since it is smaller than the sum of its proper divisors (1374159694796).

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

1320434201044 is a wasteful number, since it uses less digits than its factorization.

1320434201044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9077 (or 9068 counting only the distinct ones).

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

Adding to 1320434201044 its reverse (4401024340231), we get a palindrome (5721458541275).

The spelling of 1320434201044 in words is "one trillion, three hundred twenty billion, four hundred thirty-four million, two hundred one thousand, forty-four".