21410123 has 8 divisors (see below), whose sum is σ = 25908192. Its totient is φ = 17271936.

The previous prime is 21410117. The next prime is 21410141. The reversal of 21410123 is 32101412.

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 21410123 - 2⁸ = 21409867 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21410098 and 21410107.

It is not an unprimeable number, because it can be changed into a prime (21410113) 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, 89840 + ... + 90077.

It is an arithmetic number, because the mean of its divisors is an integer number (3238524).

Almost surely, 2^21410123 is an apocalyptic number.

21410123 is a deficient number, since it is larger than the sum of its proper divisors (4498069).

21410123 is a wasteful number, since it uses less digits than its factorization.

21410123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179941.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 21410123 is about 4627.1074117639. The cubic root of 21410123 is about 277.6768799002.

Adding to 21410123 its reverse (32101412), we get a palindrome (53511535).

The spelling of 21410123 in words is "twenty-one million, four hundred ten thousand, one hundred twenty-three".