32120331613 has 2 divisors, whose sum is σ = 32120331614. Its totient is φ = 32120331612.

The previous prime is 32120331577. The next prime is 32120331623. The reversal of 32120331613 is 31613302123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21581666649 + 10538664964 = 146907^2 + 102658^2 .

It is a cyclic number.

It is not a de Polignac number, because 32120331613 - 2¹³ = 32120323421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32120331623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060165806 + 16060165807.

It is an arithmetic number, because the mean of its divisors is an integer number (16060165807).

Almost surely, 2^32120331613 is an apocalyptic number.

It is an amenable number.

32120331613 is a deficient number, since it is larger than the sum of its proper divisors (1).

32120331613 is an equidigital number, since it uses as much as digits as its factorization.

32120331613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 32120331613 its reverse (31613302123), we get a palindrome (63733633736).

The spelling of 32120331613 in words is "thirty-two billion, one hundred twenty million, three hundred thirty-one thousand, six hundred thirteen".