23010117440 has 112 divisors (see below), whose sum is σ = 58967882064. Its totient is φ = 8520499200.

The previous prime is 23010117437. The next prime is 23010117509. The reversal of 23010117440 is 4471101032.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2689044736 + 20321072704 = 51856^2 + 142552^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297170 + ... + 366510.

It is an arithmetic number, because the mean of its divisors is an integer number (526498947).

Almost surely, 2^23010117440 is an apocalyptic number.

23010117440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23010117440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29483941032).

23010117440 is an abundant number, since it is smaller than the sum of its proper divisors (35957764624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23010117440 is a wasteful number, since it uses less digits than its factorization.

23010117440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69436 (or 69426 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 23010117440 its reverse (4471101032), we get a palindrome (27481218472).

The spelling of 23010117440 in words is "twenty-three billion, ten million, one hundred seventeen thousand, four hundred forty".