1104342587521 has 4 divisors (see below), whose sum is σ = 1119896708544. Its totient is φ = 1088788466500.

The previous prime is 1104342587519. The next prime is 1104342587527. The reversal of 1104342587521 is 1257852434011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1104342587521 - 2¹ = 1104342587519 is a prime.

It is a super-2 number, since 2×1104342587521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1104342587527) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7777060405 + ... + 7777060546.

It is an arithmetic number, because the mean of its divisors is an integer number (279974177136).

Almost surely, 2^{1104342587521} is an apocalyptic number.

It is an amenable number.

1104342587521 is a deficient number, since it is larger than the sum of its proper divisors (15554121023).

1104342587521 is an equidigital number, since it uses as much as digits as its factorization.

1104342587521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15554121022.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 1104342587521 in words is "one trillion, one hundred four billion, three hundred forty-two million, five hundred eighty-seven thousand, five hundred twenty-one".