1300111123 has 2 divisors, whose sum is σ = 1300111124. Its totient is φ = 1300111122.

The previous prime is 1300111073. The next prime is 1300111129. The reversal of 1300111123 is 3211110031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1300111123 - 2¹⁷ = 1299980051 is a prime.

It is a super-2 number, since 2×1300111123² = 3380577864296642258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1300111129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650055561 + 650055562.

It is an arithmetic number, because the mean of its divisors is an integer number (650055562).

Almost surely, 2^1300111123 is an apocalyptic number.

1300111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300111123 is an equidigital number, since it uses as much as digits as its factorization.

1300111123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1300111123 is about 36057.0537204581. The cubic root of 1300111123 is about 1091.4239793165.

Adding to 1300111123 its reverse (3211110031), we get a palindrome (4511221154).

The spelling of 1300111123 in words is "one billion, three hundred million, one hundred eleven thousand, one hundred twenty-three".