1271388114360 has 640 divisors, whose sum is σ = 5265582981120. Its totient is φ = 267934583808.

The previous prime is 1271388114349. The next prime is 1271388114361. The reversal of 1271388114360 is 634118831721.

1271388114360 is a `hidden beast` number, since 1 + 2 + 7 + 138 + 81 + 1 + 436 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271388114361) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 320489097 + ... + 320493063.

It is an arithmetic number, because the mean of its divisors is an integer number (8227473408).

Almost surely, 2^{1271388114360} is an apocalyptic number.

1271388114360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271388114360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2632791490560).

1271388114360 is an abundant number, since it is smaller than the sum of its proper divisors (3994194866760).

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

1271388114360 is a wasteful number, since it uses less digits than its factorization.

1271388114360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097 (or 5084 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 1271388114360 in words is "one trillion, two hundred seventy-one billion, three hundred eighty-eight million, one hundred fourteen thousand, three hundred sixty".