111011211247 has 2 divisors, whose sum is σ = 111011211248. Its totient is φ = 111011211246.

The previous prime is 111011211167. The next prime is 111011211307. The reversal of 111011211247 is 742112110111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111011211247 - 2²³ = 111002822639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111011211347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505605623 + 55505605624.

It is an arithmetic number, because the mean of its divisors is an integer number (55505605624).

Almost surely, 2^111011211247 is an apocalyptic number.

111011211247 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011211247 is an equidigital number, since it uses as much as digits as its factorization.

111011211247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 111011211247 its reverse (742112110111), we get a palindrome (853123321358).

The spelling of 111011211247 in words is "one hundred eleven billion, eleven million, two hundred eleven thousand, two hundred forty-seven".