11541501021 has 8 divisors (see below), whose sum is σ = 15500994624. Its totient is φ = 7638170720.

The previous prime is 11541500963. The next prime is 11541501029. The reversal of 11541501021 is 12010514511.

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 11541501021 - 2¹⁰ = 11541499997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11541501029) 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, 14040345 + ... + 14041166.

It is an arithmetic number, because the mean of its divisors is an integer number (1937624328).

Almost surely, 2^11541501021 is an apocalyptic number.

It is an amenable number.

11541501021 is a deficient number, since it is larger than the sum of its proper divisors (3959493603).

11541501021 is a wasteful number, since it uses less digits than its factorization.

11541501021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28081651.

The product of its (nonzero) digits is 200, while the sum is 21.

The spelling of 11541501021 in words is "eleven billion, five hundred forty-one million, five hundred one thousand, twenty-one".