13321032040 has 32 divisors (see below), whose sum is σ = 31735401480. Its totient is φ = 5014976512.

The previous prime is 13321032029. The next prime is 13321032059. The reversal of 13321032040 is 4023012331.

It can be written as a sum of positive squares in 4 ways, for example, as 10064503684 + 3256528356 = 100322^2 + 57066^2 .

It is a super-2 number, since 2×13321032040² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13321031999 and 13321032017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9794197 + ... + 9795556.

Almost surely, 2^13321032040 is an apocalyptic number.

13321032040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321032040 is an abundant number, since it is smaller than the sum of its proper divisors (18414369440).

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

13321032040 is a wasteful number, since it uses less digits than its factorization.

13321032040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19589781 (or 19589777 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13321032040 its reverse (4023012331), we get a palindrome (17344044371).

The spelling of 13321032040 in words is "thirteen billion, three hundred twenty-one million, thirty-two thousand, forty".