1320321113001 has 64 divisors (see below), whose sum is σ = 2143353312000. Its totient is φ = 796636684800.

The previous prime is 1320321112993. The next prime is 1320321113021. The reversal of 1320321113001 is 1003111230231.

1320321113001 is a `hidden beast` number, since 1 + 32 + 0 + 321 + 11 + 300 + 1 = 666.

It is not a de Polignac number, because 1320321113001 - 2³ = 1320321112993 is a prime.

It is a super-2 number, since 2×1320321113001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320321113021) 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, 108671275 + ... + 108683423.

It is an arithmetic number, because the mean of its divisors is an integer number (33489895500).

Almost surely, 2^{1320321113001} is an apocalyptic number.

1320321113001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1320321113001 is a deficient number, since it is larger than the sum of its proper divisors (823032198999).

1320321113001 is a wasteful number, since it uses less digits than its factorization.

1320321113001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13767 (or 13761 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1320321113001 its reverse (1003111230231), we get a palindrome (2323432343232).

The spelling of 1320321113001 in words is "one trillion, three hundred twenty billion, three hundred twenty-one million, one hundred thirteen thousand, one".