22031442343 has 32 divisors (see below), whose sum is σ = 24024960000. Its totient is φ = 20137807872.

The previous prime is 22031442271. The next prime is 22031442379. The reversal of 22031442343 is 34324413022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22031442343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031442143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17091243 + ... + 17092531.

It is an arithmetic number, because the mean of its divisors is an integer number (750780000).

Almost surely, 2^22031442343 is an apocalyptic number.

22031442343 is a deficient number, since it is larger than the sum of its proper divisors (1993517657).

22031442343 is a wasteful number, since it uses less digits than its factorization.

22031442343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

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

Adding to 22031442343 its reverse (34324413022), we get a palindrome (56355855365).

The spelling of 22031442343 in words is "twenty-two billion, thirty-one million, four hundred forty-two thousand, three hundred forty-three".