20332121013 has 8 divisors (see below), whose sum is σ = 30121660800. Its totient is φ = 13554747324.

The previous prime is 20332120997. The next prime is 20332121071. The reversal of 20332121013 is 31012123302.

It is not a de Polignac number, because 20332121013 - 2⁴ = 20332120997 is a prime.

It is a super-2 number, since 2×20332121013² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332121083) 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, 376520733 + ... + 376520786.

It is an arithmetic number, because the mean of its divisors is an integer number (3765207600).

Almost surely, 2^20332121013 is an apocalyptic number.

It is an amenable number.

20332121013 is a deficient number, since it is larger than the sum of its proper divisors (9789539787).

20332121013 is an equidigital number, since it uses as much as digits as its factorization.

20332121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753041528 (or 753041522 counting only the distinct ones).

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

Adding to 20332121013 its reverse (31012123302), we get a palindrome (51344244315).

The spelling of 20332121013 in words is "twenty billion, three hundred thirty-two million, one hundred twenty-one thousand, thirteen".