13120003201021 has 16 divisors (see below), whose sum is σ = 13296473593920. Its totient is φ = 12944768578560.

The previous prime is 13120003201001. The next prime is 13120003201079. The reversal of 13120003201021 is 12010230002131.

It is a cyclic number.

It is not a de Polignac number, because 13120003201021 - 2⁹ = 13120003200509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13120003200986 and 13120003201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120003201001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43056826 + ... + 43360468.

It is an arithmetic number, because the mean of its divisors is an integer number (831029599620).

Almost surely, 2^{13120003201021} is an apocalyptic number.

It is an amenable number.

13120003201021 is a deficient number, since it is larger than the sum of its proper divisors (176470392899).

13120003201021 is a wasteful number, since it uses less digits than its factorization.

13120003201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305676.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13120003201021 its reverse (12010230002131), we get a palindrome (25130233203152).

The spelling of 13120003201021 in words is "thirteen trillion, one hundred twenty billion, three million, two hundred one thousand, twenty-one".