23443022138 has 8 divisors (see below), whose sum is σ = 35190148788. Its totient is φ = 11712972544.

The previous prime is 23443022137. The next prime is 23443022147. The reversal of 23443022138 is 83122034432.

It can be written as a sum of positive squares in 2 ways, for example, as 17073864889 + 6369157249 = 130667^2 + 79807^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23443022137) 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, 4265831 + ... + 4271322.

Almost surely, 2^23443022138 is an apocalyptic number.

23443022138 is a deficient number, since it is larger than the sum of its proper divisors (11747126650).

23443022138 is a wasteful number, since it uses less digits than its factorization.

23443022138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8538528.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 23443022138 in words is "twenty-three billion, four hundred forty-three million, twenty-two thousand, one hundred thirty-eight".