21034331130 has 32 divisors (see below), whose sum is σ = 50495558400. Its totient is φ = 5607692352.

The previous prime is 21034331093. The next prime is 21034331137. The reversal of 21034331130 is 3113343012.

It is a junction number, because it is equal to n+sod(n) for n = 21034331097 and 21034331106.

It is not an unprimeable number, because it can be changed into a prime (21034331137) by changing a digit.

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, 28116 + ... + 207024.

It is an arithmetic number, because the mean of its divisors is an integer number (1577986200).

Almost surely, 2^21034331130 is an apocalyptic number.

21034331130 is an abundant number, since it is smaller than the sum of its proper divisors (29461227270).

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

21034331130 is a wasteful number, since it uses less digits than its factorization.

21034331130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182838.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21034331130 its reverse (3113343012), we get a palindrome (24147674142).

The spelling of 21034331130 in words is "twenty-one billion, thirty-four million, three hundred thirty-one thousand, one hundred thirty".