1243088970385 has 8 divisors (see below), whose sum is σ = 1492136795880. Its totient is φ = 994184488704.

The previous prime is 1243088970373. The next prime is 1243088970433. The reversal of 1243088970385 is 5830798803421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 38062449216 + 1205026521169 = 195096^2 + 1097737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1243088970385 - 2¹⁷ = 1243088839313 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 35816872 + ... + 35851561.

It is an arithmetic number, because the mean of its divisors is an integer number (186517099485).

Almost surely, 2^{1243088970385} is an apocalyptic number.

It is an amenable number.

1243088970385 is a deficient number, since it is larger than the sum of its proper divisors (249047825495).

1243088970385 is an equidigital number, since it uses as much as digits as its factorization.

1243088970385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71671907.

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 1243088970385 in words is "one trillion, two hundred forty-three billion, eighty-eight million, nine hundred seventy thousand, three hundred eighty-five".