1123201427 has 2 divisors, whose sum is σ = 1123201428. Its totient is φ = 1123201426.

The previous prime is 1123201421. The next prime is 1123201451. The reversal of 1123201427 is 7241023211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123201427 - 2⁴ = 1123201411 is a prime.

It is a super-2 number, since 2×1123201427² = 2523162891229672658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123201421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561600713 + 561600714.

It is an arithmetic number, because the mean of its divisors is an integer number (561600714).

Almost surely, 2^1123201427 is an apocalyptic number.

1123201427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123201427 is an equidigital number, since it uses as much as digits as its factorization.

1123201427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1123201427 is about 33514.1973945371. The cubic root of 1123201427 is about 1039.4873666237.

Adding to 1123201427 its reverse (7241023211), we get a palindrome (8364224638).

The spelling of 1123201427 in words is "one billion, one hundred twenty-three million, two hundred one thousand, four hundred twenty-seven".