13000332020 has 48 divisors (see below), whose sum is σ = 29803544400. Its totient is φ = 4734360576.

The previous prime is 13000331923. The next prime is 13000332041. The reversal of 13000332020 is 2023300031.

It can be written as a sum of positive squares in 8 ways, for example, as 2206368784 + 10793963236 = 46972^2 + 103894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13000331986 and 13000332004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323495 + ... + 361454.

It is an arithmetic number, because the mean of its divisors is an integer number (620907175).

Almost surely, 2^13000332020 is an apocalyptic number.

13000332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13000332020 is an abundant number, since it is smaller than the sum of its proper divisors (16803212380).

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

13000332020 is a wasteful number, since it uses less digits than its factorization.

13000332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685044 (or 685042 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 13000332020 its reverse (2023300031), we get a palindrome (15023632051).

The spelling of 13000332020 in words is "thirteen billion, three hundred thirty-two thousand, twenty".