13312303020 has 144 divisors (see below), whose sum is σ = 42028546560. Its totient is φ = 3537038016.

The previous prime is 13312303007. The next prime is 13312303021. The reversal of 13312303020 is 2030321331.

13312303020 is a `hidden beast` number, since 1 + 331 + 2 + 30 + 302 + 0 = 666.

It is a super-2 number, since 2×13312303020² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13312302984 and 13312303002.

It is not an unprimeable number, because it can be changed into a prime (13312303021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1370541 + ... + 1380219.

Almost surely, 2^13312303020 is an apocalyptic number.

13312303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13312303020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21014273280).

13312303020 is an abundant number, since it is smaller than the sum of its proper divisors (28716243540).

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

13312303020 is a wasteful number, since it uses less digits than its factorization.

13312303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9986 (or 9972 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 13312303020 its reverse (2030321331), we get a palindrome (15342624351).

The spelling of 13312303020 in words is "thirteen billion, three hundred twelve million, three hundred three thousand, twenty".