21333043130 has 64 divisors (see below), whose sum is σ = 46508048640. Its totient is φ = 6877799424.

The previous prime is 21333043103. The next prime is 21333043139. The reversal of 21333043130 is 3134033312.

It is a junction number, because it is equal to n+sod(n) for n = 21333043096 and 21333043105.

It is not an unprimeable number, because it can be changed into a prime (21333043139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1436081 + ... + 1450859.

It is an arithmetic number, because the mean of its divisors is an integer number (726688260).

Almost surely, 2^21333043130 is an apocalyptic number.

21333043130 is an abundant number, since it is smaller than the sum of its proper divisors (25175005510).

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

21333043130 is a wasteful number, since it uses less digits than its factorization.

21333043130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16023.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21333043130 its reverse (3134033312), we get a palindrome (24467076442).

The spelling of 21333043130 in words is "twenty-one billion, three hundred thirty-three million, forty-three thousand, one hundred thirty".