21233548411 has 8 divisors (see below), whose sum is σ = 22487445504. Its totient is φ = 20007209640.

The previous prime is 21233548387. The next prime is 21233548421. The reversal of 21233548411 is 11484533212.

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

It is a de Polignac number, because none of the positive numbers 2^k-21233548411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233548421) 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, 6887995 + ... + 6891076.

It is an arithmetic number, because the mean of its divisors is an integer number (2810930688).

Almost surely, 2^21233548411 is an apocalyptic number.

21233548411 is a deficient number, since it is larger than the sum of its proper divisors (1253897093).

21233548411 is a wasteful number, since it uses less digits than its factorization.

21233548411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13779161.

The product of its digits is 23040, while the sum is 34.

The spelling of 21233548411 in words is "twenty-one billion, two hundred thirty-three million, five hundred forty-eight thousand, four hundred eleven".