111020001019 has 2 divisors, whose sum is σ = 111020001020. Its totient is φ = 111020001018.

The previous prime is 111020000999. The next prime is 111020001061. The reversal of 111020001019 is 910100020111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111020001019 is a prime.

It is a super-2 number, since 2×111020001019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111020000993 and 111020001011.

It is not a weakly prime, because it can be changed into another prime (111020001119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510000509 + 55510000510.

It is an arithmetic number, because the mean of its divisors is an integer number (55510000510).

Almost surely, 2^111020001019 is an apocalyptic number.

111020001019 is a deficient number, since it is larger than the sum of its proper divisors (1).

111020001019 is an equidigital number, since it uses as much as digits as its factorization.

111020001019 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 16.

The spelling of 111020001019 in words is "one hundred eleven billion, twenty million, one thousand, nineteen".