12631375340 has 48 divisors (see below), whose sum is σ = 26890611552. Its totient is φ = 4983553536.

The previous prime is 12631375331. The next prime is 12631375357. The reversal of 12631375340 is 4357313621.

It is a self number, because there is not a number n which added to its sum of digits gives 12631375340.

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, 415499 + ... + 444861.

It is an arithmetic number, because the mean of its divisors is an integer number (560221074).

Almost surely, 2^12631375340 is an apocalyptic number.

12631375340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12631375340 is an abundant number, since it is smaller than the sum of its proper divisors (14259236212).

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

12631375340 is a wasteful number, since it uses less digits than its factorization.

12631375340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29666 (or 29664 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

Adding to 12631375340 its reverse (4357313621), we get a palindrome (16988688961).

The spelling of 12631375340 in words is "twelve billion, six hundred thirty-one million, three hundred seventy-five thousand, three hundred forty".