1100009423 has 2 divisors, whose sum is σ = 1100009424. Its totient is φ = 1100009422.

The previous prime is 1100009413. The next prime is 1100009437. The reversal of 1100009423 is 3249000011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100009423 - 2⁸ = 1100009167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100009395 and 1100009404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100009413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550004711 + 550004712.

It is an arithmetic number, because the mean of its divisors is an integer number (550004712).

Almost surely, 2^1100009423 is an apocalyptic number.

1100009423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100009423 is an equidigital number, since it uses as much as digits as its factorization.

1100009423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1100009423 is about 33166.3899603198. The cubic root of 1100009423 is about 1032.2830630769.

Adding to 1100009423 its reverse (3249000011), we get a palindrome (4349009434).

The spelling of 1100009423 in words is "one billion, one hundred million, nine thousand, four hundred twenty-three".