1000090423 has 2 divisors, whose sum is σ = 1000090424. Its totient is φ = 1000090422.

The previous prime is 1000090387. The next prime is 1000090453. The reversal of 1000090423 is 3240900001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000090423 - 2²⁹ = 463219511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000090423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000090453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500045211 + 500045212.

It is an arithmetic number, because the mean of its divisors is an integer number (500045212).

Almost surely, 2^1000090423 is an apocalyptic number.

1000090423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000090423 is an equidigital number, since it uses as much as digits as its factorization.

1000090423 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 19.

The square root of 1000090423 is about 31624.2062825298. The cubic root of 1000090423 is about 1000.0301400916.

Adding to 1000090423 its reverse (3240900001), we get a palindrome (4240990424).

The spelling of 1000090423 in words is "one billion, ninety thousand, four hundred twenty-three".