111320201 has 4 divisors (see below), whose sum is σ = 111351504. Its totient is φ = 111288900.

The previous prime is 111320189. The next prime is 111320203. The reversal of 111320201 is 102023111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 102023111 = 67 ⋅1522733.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111320201 is a prime.

It is a super-3 number, since 3×111320201³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111320203) 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, 9515 + ... + 17696.

It is an arithmetic number, because the mean of its divisors is an integer number (27837876).

Almost surely, 2^111320201 is an apocalyptic number.

It is an amenable number.

111320201 is a deficient number, since it is larger than the sum of its proper divisors (31303).

111320201 is an equidigital number, since it uses as much as digits as its factorization.

111320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31302.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 111320201 is about 10550.8388766012. The cubic root of 111320201 is about 481.0512276097.

Adding to 111320201 its reverse (102023111), we get a palindrome (213343312).

The spelling of 111320201 in words is "one hundred eleven million, three hundred twenty thousand, two hundred one".