111230042291 has 2 divisors, whose sum is σ = 111230042292. Its totient is φ = 111230042290.

The previous prime is 111230042243. The next prime is 111230042317. The reversal of 111230042291 is 192240032111.

It is an a-pointer prime, because the next prime (111230042317) can be obtained adding 111230042291 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111230042291 - 2²² = 111225847987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111230042291.

It is not a weakly prime, because it can be changed into another prime (111230042201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55615021145 + 55615021146.

It is an arithmetic number, because the mean of its divisors is an integer number (55615021146).

Almost surely, 2^111230042291 is an apocalyptic number.

111230042291 is a deficient number, since it is larger than the sum of its proper divisors (1).

111230042291 is an equidigital number, since it uses as much as digits as its factorization.

111230042291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 111230042291 in words is "one hundred eleven billion, two hundred thirty million, forty-two thousand, two hundred ninety-one".