32121682013 has 4 divisors (see below), whose sum is σ = 32122688028. Its totient is φ = 32120676000.

The previous prime is 32121682007. The next prime is 32121682039. The reversal of 32121682013 is 31028612123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31028612123 = 193 ⋅160770011.

It can be written as a sum of positive squares in 2 ways, for example, as 13114372324 + 19007309689 = 114518^2 + 137867^2 .

It is a cyclic number.

It is not a de Polignac number, because 32121682013 - 2⁴ = 32121681997 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 (32121681013) 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, 453488 + ... + 519513.

It is an arithmetic number, because the mean of its divisors is an integer number (8030672007).

Almost surely, 2^32121682013 is an apocalyptic number.

It is an amenable number.

32121682013 is a deficient number, since it is larger than the sum of its proper divisors (1006015).

32121682013 is an equidigital number, since it uses as much as digits as its factorization.

32121682013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006014.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 32121682013 in words is "thirty-two billion, one hundred twenty-one million, six hundred eighty-two thousand, thirteen".