111001312319 has 2 divisors, whose sum is σ = 111001312320. Its totient is φ = 111001312318.

The previous prime is 111001312313. The next prime is 111001312349. The reversal of 111001312319 is 913213100111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111001312319 is a prime.

It is a super-2 number, since 2×111001312319² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111001312294 and 111001312303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111001312313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500656159 + 55500656160.

It is an arithmetic number, because the mean of its divisors is an integer number (55500656160).

Almost surely, 2^111001312319 is an apocalyptic number.

111001312319 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001312319 is an equidigital number, since it uses as much as digits as its factorization.

111001312319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 111001312319 in words is "one hundred eleven billion, one million, three hundred twelve thousand, three hundred nineteen".