111320997 has 8 divisors (see below), whose sum is σ = 148561344. Its totient is φ = 74147328.

The previous prime is 111320987. The next prime is 111320999. The reversal of 111320997 is 799023111.

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

It is not a de Polignac number, because 111320997 - 2¹⁹ = 110796709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320999) 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, 12633 + ... + 19550.

It is an arithmetic number, because the mean of its divisors is an integer number (18570168).

Almost surely, 2^111320997 is an apocalyptic number.

It is an amenable number.

111320997 is a deficient number, since it is larger than the sum of its proper divisors (37240347).

111320997 is a wasteful number, since it uses less digits than its factorization.

111320997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33339.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 111320997 is about 10550.8765986528. The cubic root of 111320997 is about 481.0523741997.

The spelling of 111320997 in words is "one hundred eleven million, three hundred twenty thousand, nine hundred ninety-seven".