1011109999973 has 2 divisors, whose sum is σ = 1011109999974. Its totient is φ = 1011109999972.

The previous prime is 1011109999937. The next prime is 1011110000009. The reversal of 1011109999973 is 3799999011101.

Together with previous prime (1011109999937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (1011109999937) and next prime (1011110000009).

It can be written as a sum of positive squares in only one way, i.e., 879510103684 + 131599896289 = 937822^2 + 362767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011109999973 - 2²⁴ = 1011093222757 is a prime.

It is a super-3 number, since 3×1011109999973³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011109999373) 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, 505554999986 + 505554999987.

It is an arithmetic number, because the mean of its divisors is an integer number (505554999987).

Almost surely, 2^{1011109999973} is an apocalyptic number.

It is an amenable number.

1011109999973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011109999973 is an equidigital number, since it uses as much as digits as its factorization.

1011109999973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1240029, while the sum is 59.

The spelling of 1011109999973 in words is "one trillion, eleven billion, one hundred nine million, nine hundred ninety-nine thousand, nine hundred seventy-three".