20001103019 has 2 divisors, whose sum is σ = 20001103020. Its totient is φ = 20001103018.

The previous prime is 20001103013. The next prime is 20001103043. The reversal of 20001103019 is 91030110002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001103019 is a prime.

It is a super-2 number, since 2×20001103019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001102988 and 20001103006.

It is not a weakly prime, because it can be changed into another prime (20001103013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000551509 + 10000551510.

It is an arithmetic number, because the mean of its divisors is an integer number (10000551510).

Almost surely, 2^20001103019 is an apocalyptic number.

20001103019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001103019 is an equidigital number, since it uses as much as digits as its factorization.

20001103019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

The spelling of 20001103019 in words is "twenty billion, one million, one hundred three thousand, nineteen".