21223432603343 has 4 divisors (see below), whose sum is σ = 22340455371960. Its totient is φ = 20106409834728.

The previous prime is 21223432603339. The next prime is 21223432603357. The reversal of 21223432603343 is 34330623432212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21223432603343 - 2² = 21223432603339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21223432603297 and 21223432603306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223432603313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558511384280 + ... + 558511384317.

It is an arithmetic number, because the mean of its divisors is an integer number (5585113842990).

Almost surely, 2^{21223432603343} is an apocalyptic number.

21223432603343 is a deficient number, since it is larger than the sum of its proper divisors (1117022768617).

21223432603343 is a wasteful number, since it uses less digits than its factorization.

21223432603343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117022768616.

The product of its (nonzero) digits is 373248, while the sum is 38.

The spelling of 21223432603343 in words is "twenty-one trillion, two hundred twenty-three billion, four hundred thirty-two million, six hundred three thousand, three hundred forty-three".