32013131321 has 4 divisors (see below), whose sum is σ = 32793939444. Its totient is φ = 31232323200.

The previous prime is 32013131309. The next prime is 32013131327. The reversal of 32013131321 is 12313131023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12313131023 = 353 ⋅34881391.

It can be written as a sum of positive squares in 2 ways, for example, as 2523655696 + 29489475625 = 50236^2 + 171725^2 .

It is a cyclic number.

It is not a de Polignac number, because 32013131321 - 2³⁰ = 30939389497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32013131293 and 32013131302.

It is not an unprimeable number, because it can be changed into a prime (32013131327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390404000 + ... + 390404081.

It is an arithmetic number, because the mean of its divisors is an integer number (8198484861).

Almost surely, 2^32013131321 is an apocalyptic number.

It is an amenable number.

32013131321 is a deficient number, since it is larger than the sum of its proper divisors (780808123).

32013131321 is an equidigital number, since it uses as much as digits as its factorization.

32013131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780808122.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 32013131321 its reverse (12313131023), we get a palindrome (44326262344).

The spelling of 32013131321 in words is "thirty-two billion, thirteen million, one hundred thirty-one thousand, three hundred twenty-one".