32403444013 has 4 divisors (see below), whose sum is σ = 33092879040. Its totient is φ = 31714008988.

The previous prime is 32403443981. The next prime is 32403444019. The reversal of 32403444013 is 31044430423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32403444013 - 2⁵ = 32403443981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32403444019) 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, 344717443 + ... + 344717536.

It is an arithmetic number, because the mean of its divisors is an integer number (8273219760).

Almost surely, 2^32403444013 is an apocalyptic number.

It is an amenable number.

32403444013 is a deficient number, since it is larger than the sum of its proper divisors (689435027).

32403444013 is an equidigital number, since it uses as much as digits as its factorization.

32403444013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689435026.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 32403444013 its reverse (31044430423), we get a palindrome (63447874436).

The spelling of 32403444013 in words is "thirty-two billion, four hundred three million, four hundred forty-four thousand, thirteen".