23002417421 has 4 divisors (see below), whose sum is σ = 23345737152. Its totient is φ = 22659097692.

The previous prime is 23002417351. The next prime is 23002417447. The reversal of 23002417421 is 12471420032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23002417421 - 2³⁰ = 21928675597 is a prime.

It is a super-2 number, since 2×23002417421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23002417121) 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, 171659765 + ... + 171659898.

It is an arithmetic number, because the mean of its divisors is an integer number (5836434288).

Almost surely, 2^23002417421 is an apocalyptic number.

It is an amenable number.

23002417421 is a deficient number, since it is larger than the sum of its proper divisors (343319731).

23002417421 is an equidigital number, since it uses as much as digits as its factorization.

23002417421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343319730.

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 23002417421 its reverse (12471420032), we get a palindrome (35473837453).

The spelling of 23002417421 in words is "twenty-three billion, two million, four hundred seventeen thousand, four hundred twenty-one".