105112243 has 2 divisors, whose sum is σ = 105112244. Its totient is φ = 105112242.

The previous prime is 105112223. The next prime is 105112307. The reversal of 105112243 is 342211501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105112243 is a prime.

It is a super-2 number, since 2×105112243² = 22097167256982098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105112243.

It is not a weakly prime, because it can be changed into another prime (105112223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52556121 + 52556122.

It is an arithmetic number, because the mean of its divisors is an integer number (52556122).

Almost surely, 2^105112243 is an apocalyptic number.

105112243 is a deficient number, since it is larger than the sum of its proper divisors (1).

105112243 is an equidigital number, since it uses as much as digits as its factorization.

105112243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 105112243 is about 10252.4262006610. The cubic root of 105112243 is about 471.9374423340.

Adding to 105112243 its reverse (342211501), we get a palindrome (447323744).

The spelling of 105112243 in words is "one hundred five million, one hundred twelve thousand, two hundred forty-three".