111215263 has 2 divisors, whose sum is σ = 111215264. Its totient is φ = 111215262.

The previous prime is 111215249. The next prime is 111215311. The reversal of 111215263 is 362512111.

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-111215263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111215213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55607631 + 55607632.

It is an arithmetic number, because the mean of its divisors is an integer number (55607632).

Almost surely, 2^111215263 is an apocalyptic number.

111215263 is a deficient number, since it is larger than the sum of its proper divisors (1).

111215263 is an equidigital number, since it uses as much as digits as its factorization.

111215263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 22.

The square root of 111215263 is about 10545.8647345772. The cubic root of 111215263 is about 480.9000228757.

Adding to 111215263 its reverse (362512111), we get a palindrome (473727374).

It can be divided in two parts, 11121 and 5263, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 111215263 in words is "one hundred eleven million, two hundred fifteen thousand, two hundred sixty-three".