20329003 has 2 divisors, whose sum is σ = 20329004. Its totient is φ = 20329002.

The previous prime is 20328983. The next prime is 20329009. The reversal of 20329003 is 30092302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20329003 is a prime.

It is not a weakly prime, because it can be changed into another prime (20329009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10164501 + 10164502.

It is an arithmetic number, because the mean of its divisors is an integer number (10164502).

Almost surely, 2^20329003 is an apocalyptic number.

20329003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20329003 is an equidigital number, since it uses as much as digits as its factorization.

20329003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 20329003 is about 4508.7695660790. The cubic root of 20329003 is about 272.9220930983.

The spelling of 20329003 in words is "twenty million, three hundred twenty-nine thousand, three".