21134322233 has 8 divisors (see below), whose sum is σ = 21173651328. Its totient is φ = 21095029584.

The previous prime is 21134322229. The next prime is 21134322283. The reversal of 21134322233 is 33222343112.

It is a happy number.

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 21134322233 - 2² = 21134322229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21134322283) 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, 1327760 + ... + 1343582.

It is an arithmetic number, because the mean of its divisors is an integer number (2646706416).

Almost surely, 2^21134322233 is an apocalyptic number.

It is an amenable number.

21134322233 is a deficient number, since it is larger than the sum of its proper divisors (39329095).

21134322233 is a wasteful number, since it uses less digits than its factorization.

21134322233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18223.

The product of its digits is 5184, while the sum is 26.

Adding to 21134322233 its reverse (33222343112), we get a palindrome (54356665345).

The spelling of 21134322233 in words is "twenty-one billion, one hundred thirty-four million, three hundred twenty-two thousand, two hundred thirty-three".