1101117997 has 4 divisors (see below), whose sum is σ = 1258420576. Its totient is φ = 943815420.

The previous prime is 1101117973. The next prime is 1101118019. The reversal of 1101117997 is 7997111011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1101117997 - 2⁷ = 1101117869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101117937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78651279 + ... + 78651292.

It is an arithmetic number, because the mean of its divisors is an integer number (314605144).

Almost surely, 2^1101117997 is an apocalyptic number.

It is an amenable number.

1101117997 is a deficient number, since it is larger than the sum of its proper divisors (157302579).

1101117997 is an equidigital number, since it uses as much as digits as its factorization.

1101117997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157302578.

The product of its (nonzero) digits is 3969, while the sum is 37.

The square root of 1101117997 is about 33183.0980621159. The cubic root of 1101117997 is about 1032.6297200938.

The spelling of 1101117997 in words is "one billion, one hundred one million, one hundred seventeen thousand, nine hundred ninety-seven".