111023231201 has 2 divisors, whose sum is σ = 111023231202. Its totient is φ = 111023231200.

The previous prime is 111023231197. The next prime is 111023231239. The reversal of 111023231201 is 102132320111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108520830625 + 2502400576 = 329425^2 + 50024^2 .

It is a cyclic number.

It is not a de Polignac number, because 111023231201 - 2² = 111023231197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111023231201.

It is not a weakly prime, because it can be changed into another prime (111023231401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511615600 + 55511615601.

It is an arithmetic number, because the mean of its divisors is an integer number (55511615601).

Almost surely, 2^111023231201 is an apocalyptic number.

It is an amenable number.

111023231201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111023231201 is an equidigital number, since it uses as much as digits as its factorization.

111023231201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111023231201 its reverse (102132320111), we get a palindrome (213155551312).

The spelling of 111023231201 in words is "one hundred eleven billion, twenty-three million, two hundred thirty-one thousand, two hundred one".