13403402100020 has 96 divisors (see below), whose sum is σ = 28731613559040. Its totient is φ = 5250750059520.

The previous prime is 13403402099993. The next prime is 13403402100031. The reversal of 13403402100020 is 2000120430431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13403402099965 and 13403402100001.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 369089384 + ... + 369125696.

It is an arithmetic number, because the mean of its divisors is an integer number (299287641240).

Almost surely, 2^{13403402100020} is an apocalyptic number.

13403402100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13403402100020 is an abundant number, since it is smaller than the sum of its proper divisors (15328211459020).

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

13403402100020 is a wasteful number, since it uses less digits than its factorization.

13403402100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37545 (or 37543 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13403402100020 its reverse (2000120430431), we get a palindrome (15403522530451).

The spelling of 13403402100020 in words is "thirteen trillion, four hundred three billion, four hundred two million, one hundred thousand, twenty".