13333121020 has 12 divisors (see below), whose sum is σ = 27999554184. Its totient is φ = 5333248400.

The previous prime is 13333120991. The next prime is 13333121023. The reversal of 13333121020 is 2012133331.

It is a super-2 number, since 2×13333121020² (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 (13333121023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333328006 + ... + 333328045.

It is an arithmetic number, because the mean of its divisors is an integer number (2333296182).

Almost surely, 2^13333121020 is an apocalyptic number.

13333121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13333121020 is an abundant number, since it is smaller than the sum of its proper divisors (14666433164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13333121020 is a wasteful number, since it uses less digits than its factorization.

13333121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666656060 (or 666656058 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13333121020 its reverse (2012133331), we get a palindrome (15345254351).

The spelling of 13333121020 in words is "thirteen billion, three hundred thirty-three million, one hundred twenty-one thousand, twenty".