20310423 has 16 divisors (see below), whose sum is σ = 31299840. Its totient is φ = 11474496.

The previous prime is 20310401. The next prime is 20310463. The reversal of 20310423 is 32401302.

It is not a de Polignac number, because 20310423 - 2⁵ = 20310391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3565 + ... + 7302.

It is an arithmetic number, because the mean of its divisors is an integer number (1956240).

Almost surely, 2^20310423 is an apocalyptic number.

20310423 is a deficient number, since it is larger than the sum of its proper divisors (10989417).

20310423 is a wasteful number, since it uses less digits than its factorization.

20310423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10966.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20310423 is about 4506.7086659779. The cubic root of 20310423 is about 272.8389206615.

Adding to 20310423 its reverse (32401302), we get a palindrome (52711725).

The spelling of 20310423 in words is "twenty million, three hundred ten thousand, four hundred twenty-three".