21410043023 has 8 divisors (see below), whose sum is σ = 21450444288. Its totient is φ = 21369676824.

The previous prime is 21410043001. The next prime is 21410043071. The reversal of 21410043023 is 32034001412.

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 21410043023 - 2¹⁶ = 21409977487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21410042986 and 21410043004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410943023) 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, 1427240 + ... + 1442162.

It is an arithmetic number, because the mean of its divisors is an integer number (2681305536).

Almost surely, 2^21410043023 is an apocalyptic number.

21410043023 is a deficient number, since it is larger than the sum of its proper divisors (40401265).

21410043023 is a wasteful number, since it uses less digits than its factorization.

21410043023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17533.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21410043023 its reverse (32034001412), we get a palindrome (53444044435).

The spelling of 21410043023 in words is "twenty-one billion, four hundred ten million, forty-three thousand, twenty-three".