20100329 has 2 divisors, whose sum is σ = 20100330. Its totient is φ = 20100328.

The previous prime is 20100317. The next prime is 20100337. The reversal of 20100329 is 92300102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20070400 + 29929 = 4480^2 + 173^2 .

It is a cyclic number.

It is not a de Polignac number, because 20100329 - 2²⁴ = 3323113 is a prime.

It is not a weakly prime, because it can be changed into another prime (20100389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050164 + 10050165.

It is an arithmetic number, because the mean of its divisors is an integer number (10050165).

Almost surely, 2^20100329 is an apocalyptic number.

It is an amenable number.

20100329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100329 is an equidigital number, since it uses as much as digits as its factorization.

20100329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 20100329 is about 4483.3390458452. The cubic root of 20100329 is about 271.8948961350.

The spelling of 20100329 in words is "twenty million, one hundred thousand, three hundred twenty-nine".