20113195603 has 2 divisors, whose sum is σ = 20113195604. Its totient is φ = 20113195602.

The previous prime is 20113195589. The next prime is 20113195607. The reversal of 20113195603 is 30659131102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20113195603 is a prime.

It is not a weakly prime, because it can be changed into another prime (20113195607) 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, 10056597801 + 10056597802.

It is an arithmetic number, because the mean of its divisors is an integer number (10056597802).

Almost surely, 2^20113195603 is an apocalyptic number.

20113195603 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113195603 is an equidigital number, since it uses as much as digits as its factorization.

20113195603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 20113195603 in words is "twenty billion, one hundred thirteen million, one hundred ninety-five thousand, six hundred three".