20130230023423 has 12 divisors (see below), whose sum is σ = 21891225737640. Its totient is φ = 18401345317296.

The previous prime is 20130230023381. The next prime is 20130230023427. The reversal of 20130230023423 is 32432003203102.

It is not a de Polignac number, because 20130230023423 - 2³³ = 20121640088831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130230023427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72841593 + ... + 73117426.

It is an arithmetic number, because the mean of its divisors is an integer number (1824268811470).

Almost surely, 2^{20130230023423} is an apocalyptic number.

20130230023423 is a deficient number, since it is larger than the sum of its proper divisors (1760995714217).

20130230023423 is a wasteful number, since it uses less digits than its factorization.

20130230023423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145959238 (or 145959135 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 20130230023423 its reverse (32432003203102), we get a palindrome (52562233226525).

The spelling of 20130230023423 in words is "twenty trillion, one hundred thirty billion, two hundred thirty million, twenty-three thousand, four hundred twenty-three".