100120111019 has 2 divisors, whose sum is σ = 100120111020. Its totient is φ = 100120111018.

The previous prime is 100120111001. The next prime is 100120111103. The reversal of 100120111019 is 910111021001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100120111019 - 2⁸ = 100120110763 is a prime.

It is a super-2 number, since 2×100120111019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100120110988 and 100120111006.

It is not a weakly prime, because it can be changed into another prime (100120113019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060055509 + 50060055510.

It is an arithmetic number, because the mean of its divisors is an integer number (50060055510).

Almost surely, 2^100120111019 is an apocalyptic number.

100120111019 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120111019 is an equidigital number, since it uses as much as digits as its factorization.

100120111019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 100120111019 in words is "one hundred billion, one hundred twenty million, one hundred eleven thousand, nineteen".