20103619 has 2 divisors, whose sum is σ = 20103620. Its totient is φ = 20103618.

The previous prime is 20103613. The next prime is 20103637. The reversal of 20103619 is 91630102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20103619 - 2⁹ = 20103107 is a prime.

It is a super-2 number, since 2×20103619² = 808310993794322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20103619.

It is not a weakly prime, because it can be changed into another prime (20103613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051809 + 10051810.

It is an arithmetic number, because the mean of its divisors is an integer number (10051810).

Almost surely, 2^20103619 is an apocalyptic number.

20103619 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103619 is an equidigital number, since it uses as much as digits as its factorization.

20103619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 20103619 is about 4483.7059448630. The cubic root of 20103619 is about 271.9097298127.

The spelling of 20103619 in words is "twenty million, one hundred three thousand, six hundred nineteen".