32121055013 has 2 divisors, whose sum is σ = 32121055014. Its totient is φ = 32121055012.

The previous prime is 32121054989. The next prime is 32121055067. The reversal of 32121055013 is 31055012123.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29320740289 + 2800314724 = 171233^2 + 52918^2 .

It is a cyclic number.

It is not a de Polignac number, because 32121055013 - 2²⁶ = 32053946149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32121055013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32121055613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060527506 + 16060527507.

It is an arithmetic number, because the mean of its divisors is an integer number (16060527507).

Almost surely, 2^32121055013 is an apocalyptic number.

It is an amenable number.

32121055013 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121055013 is an equidigital number, since it uses as much as digits as its factorization.

32121055013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 32121055013 its reverse (31055012123), we get a palindrome (63176067136).

The spelling of 32121055013 in words is "thirty-two billion, one hundred twenty-one million, fifty-five thousand, thirteen".