20031012112300 has 144 divisors (see below), whose sum is σ = 51840119020032. Its totient is φ = 6568752960000.

The previous prime is 20031012112229. The next prime is 20031012112327. The reversal of 20031012112300 is 321121013002.

It is a super-2 number, since 2×20031012112300² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 338086479 + ... + 338145721.

It is an arithmetic number, because the mean of its divisors is an integer number (360000826528).

Almost surely, 2^{20031012112300} is an apocalyptic number.

20031012112300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20031012112300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25920059510016).

20031012112300 is an abundant number, since it is smaller than the sum of its proper divisors (31809106907732).

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

20031012112300 is a wasteful number, since it uses less digits than its factorization.

20031012112300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80288 (or 80281 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20031012112300 its reverse (321121013002), we get a palindrome (20352133125302).

The spelling of 20031012112300 in words is "twenty trillion, thirty-one billion, twelve million, one hundred twelve thousand, three hundred".