1111200199973 has 2 divisors, whose sum is σ = 1111200199974. Its totient is φ = 1111200199972.

The previous prime is 1111200199951. The next prime is 1111200200003. The reversal of 1111200199973 is 3799910021111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1043080243969 + 68119956004 = 1021313^2 + 260998^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111200199973 - 2¹⁰ = 1111200198949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111200199903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555600099986 + 555600099987.

It is an arithmetic number, because the mean of its divisors is an integer number (555600099987).

Almost surely, 2^{1111200199973} is an apocalyptic number.

It is an amenable number.

1111200199973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111200199973 is an equidigital number, since it uses as much as digits as its factorization.

1111200199973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 44.

The spelling of 1111200199973 in words is "one trillion, one hundred eleven billion, two hundred million, one hundred ninety-nine thousand, nine hundred seventy-three".