23405401001 has 4 divisors (see below), whose sum is σ = 23428059732. Its totient is φ = 23382742272.

The previous prime is 23405400983. The next prime is 23405401031. The reversal of 23405401001 is 10010450432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13438373776 + 9967027225 = 115924^2 + 99835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23405401001 is a prime.

It is a super-2 number, since 2×23405401001² (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 (23405401031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11327816 + ... + 11329881.

It is an arithmetic number, because the mean of its divisors is an integer number (5857014933).

Almost surely, 2^23405401001 is an apocalyptic number.

It is an amenable number.

23405401001 is a deficient number, since it is larger than the sum of its proper divisors (22658731).

23405401001 is a wasteful number, since it uses less digits than its factorization.

23405401001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22658730.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 23405401001 its reverse (10010450432), we get a palindrome (33415851433).

The spelling of 23405401001 in words is "twenty-three billion, four hundred five million, four hundred one thousand, one".