20123021331300 has 36 divisors (see below), whose sum is σ = 58222608386096. Its totient is φ = 5366139021600.

The previous prime is 20123021331293. The next prime is 20123021331337. The reversal of 20123021331300 is 313312032102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33538368586 + ... + 33538369185.

Almost surely, 2^{20123021331300} is an apocalyptic number.

20123021331300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123021331300 is an abundant number, since it is smaller than the sum of its proper divisors (38099587054796).

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

20123021331300 is a wasteful number, since it uses less digits than its factorization.

20123021331300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67076737788 (or 67076737781 counting only the distinct ones).

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

Adding to 20123021331300 its reverse (313312032102), we get a palindrome (20436333363402).

The spelling of 20123021331300 in words is "twenty trillion, one hundred twenty-three billion, twenty-one million, three hundred thirty-one thousand, three hundred".