111122151302549 has 2 divisors, whose sum is σ = 111122151302550. Its totient is φ = 111122151302548.

The previous prime is 111122151302479. The next prime is 111122151302551. The reversal of 111122151302549 is 945203151221111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111042215049649 + 79936252900 = 10537657^2 + 282730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111122151302549 is a prime.

Together with 111122151302551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111122151902549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561075651274 + 55561075651275.

It is an arithmetic number, because the mean of its divisors is an integer number (55561075651275).

Almost surely, 2^{111122151302549} is an apocalyptic number.

It is an amenable number.

111122151302549 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122151302549 is an equidigital number, since it uses as much as digits as its factorization.

111122151302549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 38.

The spelling of 111122151302549 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred fifty-one million, three hundred two thousand, five hundred forty-nine".