13132120021 has 8 divisors (see below), whose sum is σ = 13306312800. Its totient is φ = 12959047920.

The previous prime is 13132120013. The next prime is 13132120037. The reversal of 13132120021 is 12002123131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13132120021 - 2³ = 13132120013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13132119977 and 13132120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13132120061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256566 + ... + 303463.

It is an arithmetic number, because the mean of its divisors is an integer number (1663289100).

Almost surely, 2^13132120021 is an apocalyptic number.

It is an amenable number.

13132120021 is a deficient number, since it is larger than the sum of its proper divisors (174192779).

13132120021 is a wasteful number, since it uses less digits than its factorization.

13132120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560339.

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

Adding to 13132120021 its reverse (12002123131), we get a palindrome (25134243152).

The spelling of 13132120021 in words is "thirteen billion, one hundred thirty-two million, one hundred twenty thousand, twenty-one".