111356271919 has 2 divisors, whose sum is σ = 111356271920. Its totient is φ = 111356271918.

The previous prime is 111356271899. The next prime is 111356271937. The reversal of 111356271919 is 919172653111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111356271919 - 2¹⁹ = 111355747631 is a prime.

It is a super-2 number, since 2×111356271919² (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 (111356271119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55678135959 + 55678135960.

It is an arithmetic number, because the mean of its divisors is an integer number (55678135960).

Almost surely, 2^111356271919 is an apocalyptic number.

111356271919 is a deficient number, since it is larger than the sum of its proper divisors (1).

111356271919 is an equidigital number, since it uses as much as digits as its factorization.

111356271919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 46.

The spelling of 111356271919 in words is "one hundred eleven billion, three hundred fifty-six million, two hundred seventy-one thousand, nine hundred nineteen".