1304245143121 has 8 divisors (see below), whose sum is σ = 1351348954344. Its totient is φ = 1257765223680.

The previous prime is 1304245143107. The next prime is 1304245143127. The reversal of 1304245143121 is 1213415424031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1496838721 + 1302748304400 = 38689^2 + 1141380^2 .

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 1304245143121 - 2²¹ = 1304243045969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1304245143127) 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, 155968690 + ... + 155977051.

It is an arithmetic number, because the mean of its divisors is an integer number (168918619293).

Almost surely, 2^{1304245143121} is an apocalyptic number.

It is an amenable number.

1304245143121 is a deficient number, since it is larger than the sum of its proper divisors (47103811223).

1304245143121 is a wasteful number, since it uses less digits than its factorization.

1304245143121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311945891.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 1304245143121 in words is "one trillion, three hundred four billion, two hundred forty-five million, one hundred forty-three thousand, one hundred twenty-one".