12440233501 has 8 divisors (see below), whose sum is σ = 12890083320. Its totient is φ = 11991775488.

The previous prime is 12440233483. The next prime is 12440233523. The reversal of 12440233501 is 10533204421.

It can be written as a sum of positive squares in 4 ways, for example, as 603881476 + 11836352025 = 24574^2 + 108795^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12440233501 - 2¹⁹ = 12439709213 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 (12440233541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329736 + ... + 365521.

It is an arithmetic number, because the mean of its divisors is an integer number (1611260415).

Almost surely, 2^12440233501 is an apocalyptic number.

It is an amenable number.

12440233501 is a deficient number, since it is larger than the sum of its proper divisors (449849819).

12440233501 is an equidigital number, since it uses as much as digits as its factorization.

12440233501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695903.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 12440233501 its reverse (10533204421), we get a palindrome (22973437922).

The spelling of 12440233501 in words is "twelve billion, four hundred forty million, two hundred thirty-three thousand, five hundred one".