111331202041 has 2 divisors, whose sum is σ = 111331202042. Its totient is φ = 111331202040.

The previous prime is 111331202039. The next prime is 111331202051. The reversal of 111331202041 is 140202133111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69379560000 + 41951642041 = 263400^2 + 204821^2 .

It is a cyclic number.

It is not a de Polignac number, because 111331202041 - 2¹ = 111331202039 is a prime.

Together with 111331202039, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111331202051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55665601020 + 55665601021.

It is an arithmetic number, because the mean of its divisors is an integer number (55665601021).

Almost surely, 2^111331202041 is an apocalyptic number.

It is an amenable number.

111331202041 is a deficient number, since it is larger than the sum of its proper divisors (1).

111331202041 is an equidigital number, since it uses as much as digits as its factorization.

111331202041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111331202041 its reverse (140202133111), we get a palindrome (251533335152).

The spelling of 111331202041 in words is "one hundred eleven billion, three hundred thirty-one million, two hundred two thousand, forty-one".