23031000240 has 160 divisors (see below), whose sum is σ = 76061846016. Its totient is φ = 5744701440.

The previous prime is 23031000229. The next prime is 23031000263. The reversal of 23031000240 is 4200013032.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 647725 + ... + 682355.

Almost surely, 2^23031000240 is an apocalyptic number.

23031000240 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 23031000240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38030923008).

23031000240 is an abundant number, since it is smaller than the sum of its proper divisors (53030845776).

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

23031000240 is a wasteful number, since it uses less digits than its factorization.

23031000240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34827 (or 34821 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23031000240 its reverse (4200013032), we get a palindrome (27231013272).

The spelling of 23031000240 in words is "twenty-three billion, thirty-one million, two hundred forty", and thus it is an aban number.