1320121113003 has 36 divisors (see below), whose sum is σ = 2395371289584. Its totient is φ = 685777197600.

The previous prime is 1320121112927. The next prime is 1320121113029. The reversal of 1320121113003 is 3003111210231.

1320121113003 is a `hidden beast` number, since 1 + 320 + 1 + 211 + 130 + 0 + 3 = 666.

It is not a de Polignac number, because 1320121113003 - 2¹⁷ = 1320120981931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320121113403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 86580408 + ... + 86595653.

Almost surely, 2^{1320121113003} is an apocalyptic number.

1320121113003 is a deficient number, since it is larger than the sum of its proper divisors (1075250176581).

1320121113003 is a wasteful number, since it uses less digits than its factorization.

1320121113003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173176096 (or 173176082 counting only the distinct ones).

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

Adding to 1320121113003 its reverse (3003111210231), we get a palindrome (4323232323234).

The spelling of 1320121113003 in words is "one trillion, three hundred twenty billion, one hundred twenty-one million, one hundred thirteen thousand, three".