111310221427 has 2 divisors, whose sum is σ = 111310221428. Its totient is φ = 111310221426.

The previous prime is 111310221397. The next prime is 111310221439. The reversal of 111310221427 is 724122013111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111310221427 - 2²⁷ = 111176003699 is a prime.

It is not a weakly prime, because it can be changed into another prime (111310221487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655110713 + 55655110714.

It is an arithmetic number, because the mean of its divisors is an integer number (55655110714).

Almost surely, 2^111310221427 is an apocalyptic number.

111310221427 is a deficient number, since it is larger than the sum of its proper divisors (1).

111310221427 is an equidigital number, since it uses as much as digits as its factorization.

111310221427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 111310221427 its reverse (724122013111), we get a palindrome (835432234538).

The spelling of 111310221427 in words is "one hundred eleven billion, three hundred ten million, two hundred twenty-one thousand, four hundred twenty-seven".