13137324420 has 96 divisors (see below), whose sum is σ = 40194838656. Its totient is φ = 3179545600.

The previous prime is 13137324401. The next prime is 13137324433. The reversal of 13137324420 is 2442373131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391090 + ... + 423350.

It is an arithmetic number, because the mean of its divisors is an integer number (418696236).

Almost surely, 2^13137324420 is an apocalyptic number.

13137324420 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 13137324420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20097419328).

13137324420 is an abundant number, since it is smaller than the sum of its proper divisors (27057514236).

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

13137324420 is a wasteful number, since it uses less digits than its factorization.

13137324420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32901 (or 32899 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

Adding to 13137324420 its reverse (2442373131), we get a palindrome (15579697551).

The spelling of 13137324420 in words is "thirteen billion, one hundred thirty-seven million, three hundred twenty-four thousand, four hundred twenty".