21030303313100 has 36 divisors (see below), whose sum is σ = 45639830520144. Its totient is φ = 8411370665280.

The previous prime is 21030303313051. The next prime is 21030303313111. The reversal of 21030303313100 is 131330303012.

It is a super-2 number, since 2×21030303313100² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8256344 + ... + 10498943.

It is an arithmetic number, because the mean of its divisors is an integer number (1267773070004).

Almost surely, 2^{21030303313100} is an apocalyptic number.

21030303313100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21030303313100 is an abundant number, since it is smaller than the sum of its proper divisors (24609527207044).

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

21030303313100 is a wasteful number, since it uses less digits than its factorization.

21030303313100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18766514 (or 18766507 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 21030303313100 its reverse (131330303012), we get a palindrome (21161633616112).

The spelling of 21030303313100 in words is "twenty-one trillion, thirty billion, three hundred three million, three hundred thirteen thousand, one hundred".