111299420893 has 2 divisors, whose sum is σ = 111299420894. Its totient is φ = 111299420892.

The previous prime is 111299420887. The next prime is 111299420927. The reversal of 111299420893 is 398024992111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87268840569 + 24030580324 = 295413^2 + 155018^2 .

It is an emirp because it is prime and its reverse (398024992111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111299420893 is a prime.

It is a super-2 number, since 2×111299420893² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111299420833) 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, 55649710446 + 55649710447.

It is an arithmetic number, because the mean of its divisors is an integer number (55649710447).

Almost surely, 2^111299420893 is an apocalyptic number.

It is an amenable number.

111299420893 is a deficient number, since it is larger than the sum of its proper divisors (1).

111299420893 is an equidigital number, since it uses as much as digits as its factorization.

111299420893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 49.

The spelling of 111299420893 in words is "one hundred eleven billion, two hundred ninety-nine million, four hundred twenty thousand, eight hundred ninety-three".