21130043333 has 8 divisors (see below), whose sum is σ = 24544500480. Its totient is φ = 17814556080.

The previous prime is 21130043329. The next prime is 21130043353. The reversal of 21130043333 is 33334003112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21130043333 - 2² = 21130043329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21130043299 and 21130043308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130043303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24742013 + ... + 24742866.

It is an arithmetic number, because the mean of its divisors is an integer number (3068062560).

Almost surely, 2^21130043333 is an apocalyptic number.

It is an amenable number.

21130043333 is a deficient number, since it is larger than the sum of its proper divisors (3414457147).

21130043333 is an equidigital number, since it uses as much as digits as its factorization.

21130043333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49484947.

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

Adding to 21130043333 its reverse (33334003112), we get a palindrome (54464046445).

The spelling of 21130043333 in words is "twenty-one billion, one hundred thirty million, forty-three thousand, three hundred thirty-three".