111113201 has 2 divisors, whose sum is σ = 111113202. Its totient is φ = 111113200.

The previous prime is 111113143. The next prime is 111113213. The reversal of 111113201 is 102311111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91221601 + 19891600 = 9551^2 + 4460^2 .

It is a cyclic number.

It is not a de Polignac number, because 111113201 - 2⁶ = 111113137 is a prime.

It is a super-2 number, since 2×111113201² = 24692286872932802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111113221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556600 + 55556601.

It is an arithmetic number, because the mean of its divisors is an integer number (55556601).

Almost surely, 2^111113201 is an apocalyptic number.

It is an amenable number.

111113201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111113201 is an equidigital number, since it uses as much as digits as its factorization.

111113201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 111113201 is about 10541.0246655626. The cubic root of 111113201 is about 480.7528708916.

Adding to 111113201 its reverse (102311111), we get a palindrome (213424312).

The spelling of 111113201 in words is "one hundred eleven million, one hundred thirteen thousand, two hundred one".