20031011330100 has 36 divisors (see below), whose sum is σ = 57956392782624. Its totient is φ = 5341603021280.

The previous prime is 20031011330081. The next prime is 20031011330107. The reversal of 20031011330100 is 103311013002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20031011330100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031011330107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33385018584 + ... + 33385019183.

Almost surely, 2^{20031011330100} is an apocalyptic number.

20031011330100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20031011330100 is an abundant number, since it is smaller than the sum of its proper divisors (37925381452524).

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

20031011330100 is a wasteful number, since it uses less digits than its factorization.

20031011330100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66770037784 (or 66770037777 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 20031011330100 its reverse (103311013002), we get a palindrome (20134322343102).

The spelling of 20031011330100 in words is "twenty trillion, thirty-one billion, eleven million, three hundred thirty thousand, one hundred".