12631374020 has 12 divisors (see below), whose sum is σ = 26525885484. Its totient is φ = 5052549600.

The previous prime is 12631374001. The next prime is 12631374037. The reversal of 12631374020 is 2047313621.

It is a happy number.

12631374020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8889849796 + 3741524224 = 94286^2 + 61168^2 .

It is a super-3 number, since 3×12631374020³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315784331 + ... + 315784370.

It is an arithmetic number, because the mean of its divisors is an integer number (2210490457).

Almost surely, 2^12631374020 is an apocalyptic number.

12631374020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12631374020 is an abundant number, since it is smaller than the sum of its proper divisors (13894511464).

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

12631374020 is a wasteful number, since it uses less digits than its factorization.

12631374020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631568710 (or 631568708 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 12631374020 its reverse (2047313621), we get a palindrome (14678687641).

The spelling of 12631374020 in words is "twelve billion, six hundred thirty-one million, three hundred seventy-four thousand, twenty".