13132121320 has 32 divisors (see below), whose sum is σ = 31102394400. Its totient is φ = 4976382528.

The previous prime is 13132121287. The next prime is 13132121333. The reversal of 13132121320 is 2312123131.

It is a super-2 number, since 2×13132121320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8638794 + ... + 8640313.

It is an arithmetic number, because the mean of its divisors is an integer number (971949825).

Almost surely, 2^13132121320 is an apocalyptic number.

13132121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13132121320 is an abundant number, since it is smaller than the sum of its proper divisors (17970273080).

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

13132121320 is a wasteful number, since it uses less digits than its factorization.

13132121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17279137 (or 17279133 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13132121320 its reverse (2312123131), we get a palindrome (15444244451).

The spelling of 13132121320 in words is "thirteen billion, one hundred thirty-two million, one hundred twenty-one thousand, three hundred twenty".