21034263030 has 128 divisors (see below), whose sum is σ = 58889949696. Its totient is φ = 4751616000.

The previous prime is 21034263007. The next prime is 21034263043. The reversal of 21034263030 is 3036243012.

21034263030 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 548049 + ... + 585171.

It is an arithmetic number, because the mean of its divisors is an integer number (460077732).

Almost surely, 2^21034263030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21034263030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29444974848).

21034263030 is an abundant number, since it is smaller than the sum of its proper divisors (37855686666).

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

21034263030 is a wasteful number, since it uses less digits than its factorization.

21034263030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37262.

The product of its (nonzero) digits is 2592, while the sum is 24.

It can be divided in two parts, 210342 and 63030, that added together give a palindrome (273372).

The spelling of 21034263030 in words is "twenty-one billion, thirty-four million, two hundred sixty-three thousand, thirty".