1152352115521 has 4 divisors (see below), whose sum is σ = 1152389094100. Its totient is φ = 1152315136944.

The previous prime is 1152352115491. The next prime is 1152352115543. The reversal of 1152352115521 is 1255112532511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 568214440000 + 584137675521 = 753800^2 + 764289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152352115521 - 2⁵ = 1152352115489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152352115021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18442506 + ... + 18504883.

It is an arithmetic number, because the mean of its divisors is an integer number (288097273525).

Almost surely, 2^{1152352115521} is an apocalyptic number.

It is an amenable number.

1152352115521 is a deficient number, since it is larger than the sum of its proper divisors (36978579).

1152352115521 is an equidigital number, since it uses as much as digits as its factorization.

1152352115521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36978578.

The product of its digits is 15000, while the sum is 34.

The spelling of 1152352115521 in words is "one trillion, one hundred fifty-two billion, three hundred fifty-two million, one hundred fifteen thousand, five hundred twenty-one".