102011201819 has 2 divisors, whose sum is σ = 102011201820. Its totient is φ = 102011201818.

The previous prime is 102011201807. The next prime is 102011201843. The reversal of 102011201819 is 918102110201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102011201819 is a prime.

It is a super-2 number, since 2×102011201819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102011207819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005600909 + 51005600910.

It is an arithmetic number, because the mean of its divisors is an integer number (51005600910).

Almost surely, 2^102011201819 is an apocalyptic number.

102011201819 is a deficient number, since it is larger than the sum of its proper divisors (1).

102011201819 is an equidigital number, since it uses as much as digits as its factorization.

102011201819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 102011201819 in words is "one hundred two billion, eleven million, two hundred one thousand, eight hundred nineteen".