20131330123020 has 96 divisors (see below), whose sum is σ = 58917685381632. Its totient is φ = 5126288493568.

The previous prime is 20131330123007. The next prime is 20131330123031. The reversal of 20131330123020 is 2032103313102.

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, 11481762 + ... + 13118441.

It is an arithmetic number, because the mean of its divisors is an integer number (613725889392).

Almost surely, 2^{20131330123020} is an apocalyptic number.

20131330123020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20131330123020 is an abundant number, since it is smaller than the sum of its proper divisors (38786355258612).

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

20131330123020 is a wasteful number, since it uses less digits than its factorization.

20131330123020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24600831 (or 24600829 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20131330123020 its reverse (2032103313102), we get a palindrome (22163433436122).

The spelling of 20131330123020 in words is "twenty trillion, one hundred thirty-one billion, three hundred thirty million, one hundred twenty-three thousand, twenty".