20031003123220 has 48 divisors (see below), whose sum is σ = 42108961265280. Its totient is φ = 8004050100864.

The previous prime is 20031003123169. The next prime is 20031003123227. The reversal of 20031003123220 is 2232130013002.

It is a super-2 number, since 2×20031003123220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031003123227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160495201 + ... + 160619959.

It is an arithmetic number, because the mean of its divisors is an integer number (877270026360).

Almost surely, 2^{20031003123220} is an apocalyptic number.

20031003123220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20031003123220 is an abundant number, since it is smaller than the sum of its proper divisors (22077958142060).

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

20031003123220 is a wasteful number, since it uses less digits than its factorization.

20031003123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133072 (or 133070 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20031003123220 its reverse (2232130013002), we get a palindrome (22263133136222).

The spelling of 20031003123220 in words is "twenty trillion, thirty-one billion, three million, one hundred twenty-three thousand, two hundred twenty".