23221440334 has 4 divisors (see below), whose sum is σ = 34832160504. Its totient is φ = 11610720166.

The previous prime is 23221440283. The next prime is 23221440391. The reversal of 23221440334 is 43304412232.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805360082 + ... + 5805360085.

It is an arithmetic number, because the mean of its divisors is an integer number (8708040126).

Almost surely, 2^23221440334 is an apocalyptic number.

23221440334 is a deficient number, since it is larger than the sum of its proper divisors (11610720170).

23221440334 is a wasteful number, since it uses less digits than its factorization.

23221440334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610720169.

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

Adding to 23221440334 its reverse (43304412232), we get a palindrome (66525852566).

The spelling of 23221440334 in words is "twenty-three billion, two hundred twenty-one million, four hundred forty thousand, three hundred thirty-four".