1306250543340 has 36 divisors (see below), whose sum is σ = 3962293315344. Its totient is φ = 348333478176.

The previous prime is 1306250543293. The next prime is 1306250543341. The reversal of 1306250543340 is 433450526031.

1306250543340 is a `hidden beast` number, since 1 + 3 + 0 + 62 + 50 + 543 + 3 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1306250543295 and 1306250543304.

It is not an unprimeable number, because it can be changed into a prime (1306250543341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3628473552 + ... + 3628473911.

It is an arithmetic number, because the mean of its divisors is an integer number (110063703204).

Almost surely, 2^{1306250543340} is an apocalyptic number.

1306250543340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306250543340 is an abundant number, since it is smaller than the sum of its proper divisors (2656042772004).

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

1306250543340 is a wasteful number, since it uses less digits than its factorization.

1306250543340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7256947478 (or 7256947473 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 1306250543340 in words is "one trillion, three hundred six billion, two hundred fifty million, five hundred forty-three thousand, three hundred forty".