21200011032130 has 48 divisors (see below), whose sum is σ = 44401812181560. Its totient is φ = 7266678252288.

The previous prime is 21200011032113. The next prime is 21200011032149. The reversal of 21200011032130 is 3123011000212.

It can be written as a sum of positive squares in 4 ways, for example, as 7802061209089 + 13397949823041 = 2793217^2 + 3660321^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3765625 + ... + 7521964.

Almost surely, 2^{21200011032130} is an apocalyptic number.

21200011032130 is an abundant number, since it is smaller than the sum of its proper divisors (23201801149430).

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

21200011032130 is a wasteful number, since it uses less digits than its factorization.

21200011032130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11291443 (or 11291436 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21200011032130 its reverse (3123011000212), we get a palindrome (24323022032342).

The spelling of 21200011032130 in words is "twenty-one trillion, two hundred billion, eleven million, thirty-two thousand, one hundred thirty".