332820013 has 2 divisors, whose sum is σ = 332820014. Its totient is φ = 332820012.

The previous prime is 332819989. The next prime is 332820029. The reversal of 332820013 is 310028233.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273637764 + 59182249 = 16542^2 + 7693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-332820013 is a prime.

It is a super-2 number, since 2×332820013² = 221538322106640338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332820073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166410006 + 166410007.

It is an arithmetic number, because the mean of its divisors is an integer number (166410007).

Almost surely, 2^332820013 is an apocalyptic number.

It is an amenable number.

332820013 is a deficient number, since it is larger than the sum of its proper divisors (1).

332820013 is an equidigital number, since it uses as much as digits as its factorization.

332820013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 332820013 is about 18243.3553109070. The cubic root of 332820013 is about 693.0051750546.

Adding to 332820013 its reverse (310028233), we get a palindrome (642848246).

The spelling of 332820013 in words is "three hundred thirty-two million, eight hundred twenty thousand, thirteen".