111041427949 has 2 divisors, whose sum is σ = 111041427950. Its totient is φ = 111041427948.

The previous prime is 111041427943. The next prime is 111041427989. The reversal of 111041427949 is 949724140111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110651365449 + 390062500 = 332643^2 + 19750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111041427949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111041427943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55520713974 + 55520713975.

It is an arithmetic number, because the mean of its divisors is an integer number (55520713975).

Almost surely, 2^111041427949 is an apocalyptic number.

It is an amenable number.

111041427949 is a deficient number, since it is larger than the sum of its proper divisors (1).

111041427949 is an equidigital number, since it uses as much as digits as its factorization.

111041427949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 111041427949 in words is "one hundred eleven billion, forty-one million, four hundred twenty-seven thousand, nine hundred forty-nine".