111321233201 has 2 divisors, whose sum is σ = 111321233202. Its totient is φ = 111321233200.

The previous prime is 111321233147. The next prime is 111321233207. The reversal of 111321233201 is 102332123111.

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., 111256269601 + 64963600 = 333551^2 + 8060^2 .

It is a cyclic number.

It is not a de Polignac number, because 111321233201 - 2⁶ = 111321233137 is a prime.

It is a super-2 number, since 2×111321233201² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111321233207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55660616600 + 55660616601.

It is an arithmetic number, because the mean of its divisors is an integer number (55660616601).

Almost surely, 2^111321233201 is an apocalyptic number.

It is an amenable number.

111321233201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111321233201 is an equidigital number, since it uses as much as digits as its factorization.

111321233201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111321233201 its reverse (102332123111), we get a palindrome (213653356312).

The spelling of 111321233201 in words is "one hundred eleven billion, three hundred twenty-one million, two hundred thirty-three thousand, two hundred one".