21130202130000 has 100 divisors (see below), whose sum is σ = 68211109932768. Its totient is φ = 5634720560000.

The previous prime is 21130202129999. The next prime is 21130202130049. The reversal of 21130202130000 is 3120203112.

It is a tau number, because it is divible by the number of its divisors (100).

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

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 19 ways as a sum of consecutive naturals, for example, 352140036 + ... + 352200035.

Almost surely, 2^{21130202130000} is an apocalyptic number.

21130202130000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21130202130000 is an abundant number, since it is smaller than the sum of its proper divisors (47080907802768).

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

21130202130000 is an equidigital number, since it uses as much as digits as its factorization.

21130202130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704340102 (or 704340081 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21130202130000 its reverse (3120203112), we get a palindrome (21133322333112).

The spelling of 21130202130000 in words is "twenty-one trillion, one hundred thirty billion, two hundred two million, one hundred thirty thousand".