1100203110997 has 2 divisors, whose sum is σ = 1100203110998. Its totient is φ = 1100203110996.

The previous prime is 1100203110947. The next prime is 1100203111001. The reversal of 1100203110997 is 7990113020011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772783404561 + 327419706436 = 879081^2 + 572206^2 .

It is an emirp because it is prime and its reverse (7990113020011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100203110997 - 2¹⁵ = 1100203078229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100203110947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550101555498 + 550101555499.

It is an arithmetic number, because the mean of its divisors is an integer number (550101555499).

Almost surely, 2^{1100203110997} is an apocalyptic number.

It is an amenable number.

1100203110997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100203110997 is an equidigital number, since it uses as much as digits as its factorization.

1100203110997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 34.

The spelling of 1100203110997 in words is "one trillion, one hundred billion, two hundred three million, one hundred ten thousand, nine hundred ninety-seven".