20003123010030 has 64 divisors (see below), whose sum is σ = 49630381371648. Its totient is φ = 5156403194880.

The previous prime is 20003123009963. The next prime is 20003123010047. The reversal of 20003123010030 is 3001032130002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 20003123009991 and 20003123010009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79804236 + ... + 80054495.

It is an arithmetic number, because the mean of its divisors is an integer number (775474708932).

Almost surely, 2^{20003123010030} is an apocalyptic number.

20003123010030 is an abundant number, since it is smaller than the sum of its proper divisors (29627258361618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20003123010030 is a wasteful number, since it uses less digits than its factorization.

20003123010030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159858881.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20003123010030 its reverse (3001032130002), we get a palindrome (23004155140032).

The spelling of 20003123010030 in words is "twenty trillion, three billion, one hundred twenty-three million, ten thousand, thirty".