111440254243 has 2 divisors, whose sum is σ = 111440254244. Its totient is φ = 111440254242.

The previous prime is 111440254213. The next prime is 111440254253. The reversal of 111440254243 is 342452044111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111440254243 - 2¹³ = 111440246051 is a prime.

It is not a weakly prime, because it can be changed into another prime (111440254213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55720127121 + 55720127122.

It is an arithmetic number, because the mean of its divisors is an integer number (55720127122).

Almost surely, 2^111440254243 is an apocalyptic number.

111440254243 is a deficient number, since it is larger than the sum of its proper divisors (1).

111440254243 is an equidigital number, since it uses as much as digits as its factorization.

111440254243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 111440254243 its reverse (342452044111), we get a palindrome (453892298354).

The spelling of 111440254243 in words is "one hundred eleven billion, four hundred forty million, two hundred fifty-four thousand, two hundred forty-three".