23213443402 has 8 divisors (see below), whose sum is σ = 34827536196. Its totient is φ = 11604264672.

The previous prime is 23213443361. The next prime is 23213443469. The reversal of 23213443402 is 20434431232.

It can be written as a sum of positive squares in 2 ways, for example, as 17291987001 + 5921456401 = 131499^2 + 76951^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216683 + ... + 1235614.

Almost surely, 2^23213443402 is an apocalyptic number.

23213443402 is a deficient number, since it is larger than the sum of its proper divisors (11614092794).

23213443402 is a wasteful number, since it uses less digits than its factorization.

23213443402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457032.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 23213443402 its reverse (20434431232), we get a palindrome (43647874634).

The spelling of 23213443402 in words is "twenty-three billion, two hundred thirteen million, four hundred forty-three thousand, four hundred two".