11502542321 has 8 divisors (see below), whose sum is σ = 11755023744. Its totient is φ = 11250383760.

The previous prime is 11502542309. The next prime is 11502542399. The reversal of 11502542321 is 12324520511.

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 11502542321 - 2³⁰ = 10428800497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11502542021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7970 + ... + 151883.

It is an arithmetic number, because the mean of its divisors is an integer number (1469377968).

Almost surely, 2^11502542321 is an apocalyptic number.

It is an amenable number.

11502542321 is a deficient number, since it is larger than the sum of its proper divisors (252481423).

11502542321 is a wasteful number, since it uses less digits than its factorization.

11502542321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161431.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 11502542321 in words is "eleven billion, five hundred two million, five hundred forty-two thousand, three hundred twenty-one".