20030123323 has 64 divisors (see below), whose sum is σ = 25318656000. Its totient is φ = 15789634560.

The previous prime is 20030123287. The next prime is 20030123369. The reversal of 20030123323 is 32332103002.

It is a happy number.

It is not a de Polignac number, because 20030123323 - 2⁹ = 20030122811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20030123323.

It is not an unprimeable number, because it can be changed into a prime (20030121323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33777315 + ... + 33777907.

It is an arithmetic number, because the mean of its divisors is an integer number (395604000).

Almost surely, 2^20030123323 is an apocalyptic number.

20030123323 is a deficient number, since it is larger than the sum of its proper divisors (5288532677).

20030123323 is an equidigital number, since it uses as much as digits as its factorization.

20030123323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20030123323 its reverse (32332103002), we get a palindrome (52362226325).

The spelling of 20030123323 in words is "twenty billion, thirty million, one hundred twenty-three thousand, three hundred twenty-three".