20131313202100 has 36 divisors (see below), whose sum is σ = 43904472052000. Its totient is φ = 8012060321760.

The previous prime is 20131313202073. The next prime is 20131313202103. The reversal of 20131313202100 is 120231313102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131313202103) 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, 505791990 + ... + 505831789.

Almost surely, 2^{20131313202100} is an apocalyptic number.

20131313202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20131313202100 is an abundant number, since it is smaller than the sum of its proper divisors (23773158849900).

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

20131313202100 is a wasteful number, since it uses less digits than its factorization.

20131313202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011623992 (or 1011623985 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20131313202100 its reverse (120231313102), we get a palindrome (20251544515202).

The spelling of 20131313202100 in words is "twenty trillion, one hundred thirty-one billion, three hundred thirteen million, two hundred two thousand, one hundred".