203112321100019 has 2 divisors, whose sum is σ = 203112321100020. Its totient is φ = 203112321100018.

The previous prime is 203112321099943. The next prime is 203112321100063. The reversal of 203112321100019 is 910001123211302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203112321100019 is a prime.

It is a super-2 number, since 2×203112321100019² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203112321100519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556160550009 + 101556160550010.

It is an arithmetic number, because the mean of its divisors is an integer number (101556160550010).

Almost surely, 2^{203112321100019} is an apocalyptic number.

203112321100019 is a deficient number, since it is larger than the sum of its proper divisors (1).

203112321100019 is an equidigital number, since it uses as much as digits as its factorization.

203112321100019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 203112321100019 in words is "two hundred three trillion, one hundred twelve billion, three hundred twenty-one million, one hundred thousand, nineteen".