1243064770317 has 6 divisors (see below), whose sum is σ = 1795538001582. Its totient is φ = 828709846872.

The previous prime is 1243064770237. The next prime is 1243064770327. The reversal of 1243064770317 is 7130774603421.

It is a happy number.

1243064770317 is a `hidden beast` number, since 1 + 24 + 306 + 4 + 7 + 7 + 0 + 317 = 666.

It can be written as a sum of positive squares in only one way, i.e., 974506583241 + 268558187076 = 987171^2 + 518226^2 .

It is not a de Polignac number, because 1243064770317 - 2¹⁶ = 1243064704781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243064770327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69059153898 + ... + 69059153915.

It is an arithmetic number, because the mean of its divisors is an integer number (299256333597).

Almost surely, 2^{1243064770317} is an apocalyptic number.

It is an amenable number.

1243064770317 is a deficient number, since it is larger than the sum of its proper divisors (552473231265).

1243064770317 is a wasteful number, since it uses less digits than its factorization.

1243064770317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138118307819 (or 138118307816 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The spelling of 1243064770317 in words is "one trillion, two hundred forty-three billion, sixty-four million, seven hundred seventy thousand, three hundred seventeen".