21103223303130 has 32 divisors (see below), whose sum is σ = 50650125259968. Its totient is φ = 5627260732800.

The previous prime is 21103223303093. The next prime is 21103223303147. The reversal of 21103223303130 is 3130332230112.

It is a self number, because there is not a number n which added to its sum of digits gives 21103223303130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15945651 + ... + 17218310.

It is an arithmetic number, because the mean of its divisors is an integer number (1582816414374).

Almost surely, 2^{21103223303130} is an apocalyptic number.

21103223303130 is an abundant number, since it is smaller than the sum of its proper divisors (29546901956838).

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

21103223303130 is a wasteful number, since it uses less digits than its factorization.

21103223303130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33185182.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21103223303130 its reverse (3130332230112), we get a palindrome (24233555533242).

The spelling of 21103223303130 in words is "twenty-one trillion, one hundred three billion, two hundred twenty-three million, three hundred three thousand, one hundred thirty".