1271440132040 has 32 divisors (see below), whose sum is σ = 3080797244280. Its totient is φ = 469454817792.

The previous prime is 1271440131937. The next prime is 1271440132049. The reversal of 1271440132040 is 402310441721.

It can be written as a sum of positive squares in 4 ways, for example, as 825448565764 + 445991566276 = 908542^2 + 667826^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1271440131994 and 1271440132012.

It is not an unprimeable number, because it can be changed into a prime (1271440132049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222538069 + ... + 1222539108.

Almost surely, 2^{1271440132040} is an apocalyptic number.

1271440132040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1271440132040 is an abundant number, since it is smaller than the sum of its proper divisors (1809357112240).

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

1271440132040 is a wasteful number, since it uses less digits than its factorization.

1271440132040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445077201 (or 2445077197 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 1271440132040 its reverse (402310441721), we get a palindrome (1673750573761).

The spelling of 1271440132040 in words is "one trillion, two hundred seventy-one billion, four hundred forty million, one hundred thirty-two thousand, forty".