23409306001 has 3 divisors (see below), whose sum is σ = 23409459003. Its totient is φ = 23409153000.

The previous prime is 23409305987. The next prime is 23409306023. The reversal of 23409306001 is 10060390432.

The square root of 23409306001 is 153001.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 728946001 + 22680360000 = 26999^2 + 150600^2 .

It is not a de Polignac number, because 23409306001 - 2²¹ = 23407208849 is a prime.

It is a super-2 number, since 2×23409306001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23409306071) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76501 + ... + 229501.

It is an arithmetic number, because the mean of its divisors is an integer number (7803153001).

Almost surely, 2^23409306001 is an apocalyptic number.

23409306001 is the 153001-st square number.

23409306001 is the 76501-st centered octagonal number.

It is an amenable number.

23409306001 is a deficient number, since it is larger than the sum of its proper divisors (153002).

23409306001 is an frugal number, since it uses more digits than its factorization.

23409306001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306002 (or 153001 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 23409306001 its reverse (10060390432), we get a palindrome (33469696433).

The spelling of 23409306001 in words is "twenty-three billion, four hundred nine million, three hundred six thousand, one".