21021002300130 has 64 divisors (see below), whose sum is σ = 57667011049728. Its totient is φ = 4804016797440.

The previous prime is 21021002300083. The next prime is 21021002300167. The reversal of 21021002300130 is 3100320012012.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6872841 + ... + 9448700.

It is an arithmetic number, because the mean of its divisors is an integer number (901047047652).

Almost surely, 2^{21021002300130} is an apocalyptic number.

21021002300130 is an abundant number, since it is smaller than the sum of its proper divisors (36646008749598).

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

21021002300130 is a wasteful number, since it uses less digits than its factorization.

21021002300130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16327691.

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

Adding to 21021002300130 its reverse (3100320012012), we get a palindrome (24121322312142).

The spelling of 21021002300130 in words is "twenty-one trillion, twenty-one billion, two million, three hundred thousand, one hundred thirty".