23513444144 has 20 divisors (see below), whose sum is σ = 45562027296. Its totient is φ = 11755501632.

The previous prime is 23513444113. The next prime is 23513444147. The reversal of 23513444144 is 44144431532.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23513444147) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 94217 + ... + 236439.

Almost surely, 2^23513444144 is an apocalyptic number.

It is an amenable number.

23513444144 is a deficient number, since it is larger than the sum of its proper divisors (22048583152).

23513444144 is a wasteful number, since it uses less digits than its factorization.

23513444144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152564 (or 152558 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

Adding to 23513444144 its reverse (44144431532), we get a palindrome (67657875676).

The spelling of 23513444144 in words is "twenty-three billion, five hundred thirteen million, four hundred forty-four thousand, one hundred forty-four".