111023201 has 2 divisors, whose sum is σ = 111023202. Its totient is φ = 111023200.

The previous prime is 111023177. The next prime is 111023219. The reversal of 111023201 is 102320111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78304801 + 32718400 = 8849^2 + 5720^2 .

It is a cyclic number.

It is not a de Polignac number, because 111023201 - 2¹⁴ = 111006817 is a prime.

It is not a weakly prime, because it can be changed into another prime (111023401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511600 + 55511601.

It is an arithmetic number, because the mean of its divisors is an integer number (55511601).

Almost surely, 2^111023201 is an apocalyptic number.

It is an amenable number.

111023201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111023201 is an equidigital number, since it uses as much as digits as its factorization.

111023201 is an evil number, because the sum of its binary digits is even.

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

The square root of 111023201 is about 10536.7547660558. The cubic root of 111023201 is about 480.6230349965.

Adding to 111023201 its reverse (102320111), we get a palindrome (213343312).

It can be divided in two parts, 11 and 1023201, that multiplied together give a palindrome (11255211).

The spelling of 111023201 in words is "one hundred eleven million, twenty-three thousand, two hundred one".