11100111009997 has 2 divisors, whose sum is σ = 11100111009998. Its totient is φ = 11100111009996.

The previous prime is 11100111009991. The next prime is 11100111010063. The reversal of 11100111009997 is 79990011100111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10730269452681 + 369841557316 = 3275709^2 + 608146^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100111009997 - 2³ = 11100111009989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100111009991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550055504998 + 5550055504999.

It is an arithmetic number, because the mean of its divisors is an integer number (5550055504999).

Almost surely, 2^{11100111009997} is an apocalyptic number.

It is an amenable number.

11100111009997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100111009997 is an equidigital number, since it uses as much as digits as its factorization.

11100111009997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 40.

The spelling of 11100111009997 in words is "eleven trillion, one hundred billion, one hundred eleven million, nine thousand, nine hundred ninety-seven".