21332410123 has 8 divisors (see below), whose sum is σ = 21846213488. Its totient is φ = 20819411424.

The previous prime is 21332410079. The next prime is 21332410129. The reversal of 21332410123 is 32101423312.

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 21332410123 - 2⁹ = 21332409611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21332410094 and 21332410103.

It is not an unprimeable number, because it can be changed into a prime (21332410129) 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, 147336 + ... + 253717.

It is an arithmetic number, because the mean of its divisors is an integer number (2730776686).

Almost surely, 2^21332410123 is an apocalyptic number.

21332410123 is a deficient number, since it is larger than the sum of its proper divisors (513803365).

21332410123 is a wasteful number, since it uses less digits than its factorization.

21332410123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402333.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21332410123 its reverse (32101423312), we get a palindrome (53433833435).

The spelling of 21332410123 in words is "twenty-one billion, three hundred thirty-two million, four hundred ten thousand, one hundred twenty-three".