13012324020 has 36 divisors (see below), whose sum is σ = 39470716740. Its totient is φ = 3469953024.

The previous prime is 13012324019. The next prime is 13012324051. The reversal of 13012324020 is 2042321031.

13012324020 is a `hidden beast` number, since 1 + 30 + 1 + 232 + 402 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8495677584 + 4516646436 = 92172^2 + 67206^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 13012323984 and 13012324002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36145165 + ... + 36145524.

Almost surely, 2^13012324020 is an apocalyptic number.

13012324020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13012324020 is an abundant number, since it is smaller than the sum of its proper divisors (26458392720).

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

13012324020 is a wasteful number, since it uses less digits than its factorization.

13012324020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72290704 (or 72290699 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13012324020 its reverse (2042321031), we get a palindrome (15054645051).

The spelling of 13012324020 in words is "thirteen billion, twelve million, three hundred twenty-four thousand, twenty".