1303111123 has 2 divisors, whose sum is σ = 1303111124. Its totient is φ = 1303111122.

The previous prime is 1303111057. The next prime is 1303111151. The reversal of 1303111123 is 3211113031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1303111123 - 2¹⁷ = 1302980051 is a prime.

It is a super-2 number, since 2×1303111123² = 3396197197772642258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1303111097 and 1303111106.

It is not a weakly prime, because it can be changed into another prime (1303111193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651555561 + 651555562.

It is an arithmetic number, because the mean of its divisors is an integer number (651555562).

Almost surely, 2^1303111123 is an apocalyptic number.

1303111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303111123 is an equidigital number, since it uses as much as digits as its factorization.

1303111123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1303111123 is about 36098.6304864880. The cubic root of 1303111123 is about 1092.2628195890.

Adding to 1303111123 its reverse (3211113031), we get a palindrome (4514224154).

The spelling of 1303111123 in words is "one billion, three hundred three million, one hundred eleven thousand, one hundred twenty-three".