1020001111169 has 2 divisors, whose sum is σ = 1020001111170. Its totient is φ = 1020001111168.

The previous prime is 1020001111093. The next prime is 1020001111201. The reversal of 1020001111169 is 9611111000201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 816333934144 + 203667177025 = 903512^2 + 451295^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020001111169 - 2³² = 1015706143873 is a prime.

It is a super-2 number, since 2×1020001111169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1020001111469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510000555584 + 510000555585.

It is an arithmetic number, because the mean of its divisors is an integer number (510000555585).

Almost surely, 2^{1020001111169} is an apocalyptic number.

It is an amenable number.

1020001111169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020001111169 is an equidigital number, since it uses as much as digits as its factorization.

1020001111169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 23.

The spelling of 1020001111169 in words is "one trillion, twenty billion, one million, one hundred eleven thousand, one hundred sixty-nine".