20003120123300 has 36 divisors (see below), whose sum is σ = 45960110122500. Its totient is φ = 7530586398720.

The previous prime is 20003120123293. The next prime is 20003120123333. The reversal of 20003120123300 is 332102130002.

It can be written as a sum of positive squares in 6 ways, for example, as 1862608071076 + 18140512052224 = 1364774^2 + 4259168^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5883268925 + ... + 5883272324.

It is an arithmetic number, because the mean of its divisors is an integer number (1276669725625).

Almost surely, 2^{20003120123300} is an apocalyptic number.

20003120123300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003120123300 is an abundant number, since it is smaller than the sum of its proper divisors (25956989999200).

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

20003120123300 is a wasteful number, since it uses less digits than its factorization.

20003120123300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11766541280 (or 11766541273 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20003120123300 its reverse (332102130002), we get a palindrome (20335222253302).

The spelling of 20003120123300 in words is "twenty trillion, three billion, one hundred twenty million, one hundred twenty-three thousand, three hundred".