111322513 has 2 divisors, whose sum is σ = 111322514. Its totient is φ = 111322512.

The previous prime is 111322493. The next prime is 111322531. The reversal of 111322513 is 315223111.

Together with next prime (111322531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90098064 + 21224449 = 9492^2 + 4607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111322513 is a prime.

It is not a weakly prime, because it can be changed into another prime (111322543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55661256 + 55661257.

It is an arithmetic number, because the mean of its divisors is an integer number (55661257).

Almost surely, 2^111322513 is an apocalyptic number.

It is an amenable number.

111322513 is a deficient number, since it is larger than the sum of its proper divisors (1).

111322513 is an equidigital number, since it uses as much as digits as its factorization.

111322513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 19.

The square root of 111322513 is about 10550.9484407801. The cubic root of 111322513 is about 481.0545578910.

Adding to 111322513 its reverse (315223111), we get a palindrome (426545624).

It can be divided in two parts, 111 and 322513, that added together give a square (322624 = 568²).

The spelling of 111322513 in words is "one hundred eleven million, three hundred twenty-two thousand, five hundred thirteen".