11501095021 has 8 divisors (see below), whose sum is σ = 12448669464. Its totient is φ = 10562502720.

The previous prime is 11501095019. The next prime is 11501095027. The reversal of 11501095021 is 12059010511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2979958921 + 8521136100 = 54589^2 + 92310^2 .

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 11501095021 - 2¹ = 11501095019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11501095027) 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, 2242870 + ... + 2247991.

It is an arithmetic number, because the mean of its divisors is an integer number (1556083683).

Almost surely, 2^11501095021 is an apocalyptic number.

It is an amenable number.

11501095021 is a deficient number, since it is larger than the sum of its proper divisors (947574443).

11501095021 is a wasteful number, since it uses less digits than its factorization.

11501095021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491071.

The product of its (nonzero) digits is 450, while the sum is 25.

The spelling of 11501095021 in words is "eleven billion, five hundred one million, ninety-five thousand, twenty-one".