101010009999919 has 2 divisors, whose sum is σ = 101010009999920. Its totient is φ = 101010009999918.

The previous prime is 101010009999907. The next prime is 101010010000021. The reversal of 101010009999919 is 919999900010101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101010009999919 - 2¹⁵ = 101010009967151 is a prime.

It is a super-2 number, since 2×101010009999919² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101010009999419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505004999959 + 50505004999960.

It is an arithmetic number, because the mean of its divisors is an integer number (50505004999960).

Almost surely, 2^{101010009999919} is an apocalyptic number.

101010009999919 is a deficient number, since it is larger than the sum of its proper divisors (1).

101010009999919 is an equidigital number, since it uses as much as digits as its factorization.

101010009999919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 531441, while the sum is 58.

The spelling of 101010009999919 in words is "one hundred one trillion, ten billion, nine million, nine hundred ninety-nine thousand, nine hundred nineteen".