32001021313 has 4 divisors (see below), whose sum is σ = 32074927108. Its totient is φ = 31927115520.

The previous prime is 32001021307. The next prime is 32001021317. The reversal of 32001021313 is 31312010023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1373221249 + 30627800064 = 37057^2 + 175008^2 .

It is a cyclic number.

It is not a de Polignac number, because 32001021313 - 2²⁹ = 31464150401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32001021317) 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, 36952248 + ... + 36953113.

It is an arithmetic number, because the mean of its divisors is an integer number (8018731777).

Almost surely, 2^32001021313 is an apocalyptic number.

It is an amenable number.

32001021313 is a deficient number, since it is larger than the sum of its proper divisors (73905795).

32001021313 is an equidigital number, since it uses as much as digits as its factorization.

32001021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73905794.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 32001021313 its reverse (31312010023), we get a palindrome (63313031336).

The spelling of 32001021313 in words is "thirty-two billion, one million, twenty-one thousand, three hundred thirteen".