11321164501 has 8 divisors (see below), whose sum is σ = 11989557144. Its totient is φ = 10653043200.

The previous prime is 11321164457. The next prime is 11321164513. The reversal of 11321164501 is 10546112311.

It can be written as a sum of positive squares in 4 ways, for example, as 242549476 + 11078615025 = 15574^2 + 105255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11321164501 - 2⁷ = 11321164373 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 (11321164541) 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, 21441 + ... + 151993.

It is an arithmetic number, because the mean of its divisors is an integer number (1498694643).

Almost surely, 2^11321164501 is an apocalyptic number.

It is an amenable number.

11321164501 is a deficient number, since it is larger than the sum of its proper divisors (668392643).

11321164501 is a wasteful number, since it uses less digits than its factorization.

11321164501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135671.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 11321164501 its reverse (10546112311), we get a palindrome (21867276812).

The spelling of 11321164501 in words is "eleven billion, three hundred twenty-one million, one hundred sixty-four thousand, five hundred one".