21035200203100 has 18 divisors (see below), whose sum is σ = 45646384440944. Its totient is φ = 8414080081200.

The previous prime is 21035200203077. The next prime is 21035200203137. The reversal of 21035200203100 is 130200253012.

It is a super-2 number, since 2×21035200203100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105176000916 + ... + 105176001115.

Almost surely, 2^{21035200203100} is an apocalyptic number.

21035200203100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21035200203100 is an abundant number, since it is smaller than the sum of its proper divisors (24611184237844).

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

21035200203100 is a wasteful number, since it uses less digits than its factorization.

21035200203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210352002045 (or 210352002038 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 21035200203100 its reverse (130200253012), we get a palindrome (21165400456112).

The spelling of 21035200203100 in words is "twenty-one trillion, thirty-five billion, two hundred million, two hundred three thousand, one hundred".