20331112130100 has 108 divisors (see below), whose sum is σ = 63830701992876. Its totient is φ = 5412785333760.

The previous prime is 20331112130089. The next prime is 20331112130107. The reversal of 20331112130100 is 103121113302.

20331112130100 is a `hidden beast` number, since 2 + 0 + 331 + 11 + 21 + 301 + 0 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 439744049424 + 19891368080676 = 663132^2 + 4459974^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331112130107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17874177 + ... + 18977576.

Almost surely, 2^{20331112130100} is an apocalyptic number.

20331112130100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20331112130100 is an abundant number, since it is smaller than the sum of its proper divisors (43499589862776).

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

20331112130100 is a wasteful number, since it uses less digits than its factorization.

20331112130100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36852386 (or 36852376 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20331112130100 its reverse (103121113302), we get a palindrome (20434233243402).

The spelling of 20331112130100 in words is "twenty trillion, three hundred thirty-one billion, one hundred twelve million, one hundred thirty thousand, one hundred".