12440020310 has 16 divisors (see below), whose sum is σ = 22393405152. Its totient is φ = 4975704000.

The previous prime is 12440020303. The next prime is 12440020319. The reversal of 12440020310 is 1302004421.

It is a super-2 number, since 2×12440020310² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440020319) 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, 212210 + ... + 264410.

It is an arithmetic number, because the mean of its divisors is an integer number (1399587822).

Almost surely, 2^12440020310 is an apocalyptic number.

12440020310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12440020310 is a deficient number, since it is larger than the sum of its proper divisors (9953384842).

12440020310 is a wasteful number, since it uses less digits than its factorization.

12440020310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76039.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12440020310 its reverse (1302004421), we get a palindrome (13742024731).

The spelling of 12440020310 in words is "twelve billion, four hundred forty million, twenty thousand, three hundred ten".