2111102109997 has 2 divisors, whose sum is σ = 2111102109998. Its totient is φ = 2111102109996.

The previous prime is 2111102109959. The next prime is 2111102110067. The reversal of 2111102109997 is 7999012011112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2087270778121 + 23831331876 = 1444739^2 + 154374^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111102109997 - 2³¹ = 2108954626349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111102109917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055551054998 + 1055551054999.

It is an arithmetic number, because the mean of its divisors is an integer number (1055551054999).

Almost surely, 2^{2111102109997} is an apocalyptic number.

It is an amenable number.

2111102109997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111102109997 is an equidigital number, since it uses as much as digits as its factorization.

2111102109997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 43.

The spelling of 2111102109997 in words is "two trillion, one hundred eleven billion, one hundred two million, one hundred nine thousand, nine hundred ninety-seven".