13020332121 has 40 divisors (see below), whose sum is σ = 19885476864. Its totient is φ = 8486337600.

The previous prime is 13020332111. The next prime is 13020332123. The reversal of 13020332121 is 12123302031.

It is not a de Polignac number, because 13020332121 - 2¹³ = 13020323929 is a prime.

It is a super-2 number, since 2×13020332121² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13020332094 and 13020332103.

It is not an unprimeable number, because it can be changed into a prime (13020332123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6672696 + ... + 6674646.

Almost surely, 2^13020332121 is an apocalyptic number.

It is an amenable number.

13020332121 is a deficient number, since it is larger than the sum of its proper divisors (6865144743).

13020332121 is a wasteful number, since it uses less digits than its factorization.

13020332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763 (or 3754 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13020332121 its reverse (12123302031), we get a palindrome (25143634152).

The spelling of 13020332121 in words is "thirteen billion, twenty million, three hundred thirty-two thousand, one hundred twenty-one".