1123203127 has 2 divisors, whose sum is σ = 1123203128. Its totient is φ = 1123203126.

The previous prime is 1123203097. The next prime is 1123203149. The reversal of 1123203127 is 7213023211.

It is a happy number.

It is an a-pointer prime, because the next prime (1123203149) can be obtained adding 1123203127 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123203127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123203098 and 1123203107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123203157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561601563 + 561601564.

It is an arithmetic number, because the mean of its divisors is an integer number (561601564).

Almost surely, 2^1123203127 is an apocalyptic number.

1123203127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123203127 is an equidigital number, since it uses as much as digits as its factorization.

1123203127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1123203127 is about 33514.2227569132. Note that the first 3 decimals coincide. The cubic root of 1123203127 is about 1039.4878910555.

Adding to 1123203127 its reverse (7213023211), we get a palindrome (8336226338).

The spelling of 1123203127 in words is "one billion, one hundred twenty-three million, two hundred three thousand, one hundred twenty-seven".