22031434430 has 64 divisors (see below), whose sum is σ = 40614194880. Its totient is φ = 8603172864.

The previous prime is 22031434417. The next prime is 22031434471. The reversal of 22031434430 is 3443413022.

It is a self number, because there is not a number n which added to its sum of digits gives 22031434430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25647341 + ... + 25648199.

It is an arithmetic number, because the mean of its divisors is an integer number (634596795).

Almost surely, 2^22031434430 is an apocalyptic number.

22031434430 is a deficient number, since it is larger than the sum of its proper divisors (18582760450).

22031434430 is a wasteful number, since it uses less digits than its factorization.

22031434430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 22031434430 its reverse (3443413022), we get a palindrome (25474847452).

The spelling of 22031434430 in words is "twenty-two billion, thirty-one million, four hundred thirty-four thousand, four hundred thirty".