2111009997 has 8 divisors (see below), whose sum is σ = 2815930656. Its totient is φ = 1406714672.

The previous prime is 2111009987. The next prime is 2111010043. The reversal of 2111009997 is 7999001112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111009997 - 2¹¹ = 2111007949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111009987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148398 + ... + 161999.

It is an arithmetic number, because the mean of its divisors is an integer number (351991332).

Almost surely, 2^2111009997 is an apocalyptic number.

It is an amenable number.

2111009997 is a deficient number, since it is larger than the sum of its proper divisors (704920659).

2111009997 is a wasteful number, since it uses less digits than its factorization.

2111009997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312667.

The product of its (nonzero) digits is 10206, while the sum is 39.

The square root of 2111009997 is about 45945.7288221658. The cubic root of 2111009997 is about 1282.8132291633.

The spelling of 2111009997 in words is "two billion, one hundred eleven million, nine thousand, nine hundred ninety-seven".