23113421 has 8 divisors (see below), whose sum is σ = 24555960. Its totient is φ = 21680128.

The previous prime is 23113417. The next prime is 23113471. The reversal of 23113421 is 12431132.

It can be written as a sum of positive squares in 4 ways, for example, as 6056521 + 17056900 = 2461^2 + 4130^2 .

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 23113421 - 2² = 23113417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23113421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3245 + ... + 7533.

It is an arithmetic number, because the mean of its divisors is an integer number (3069495).

Almost surely, 2^23113421 is an apocalyptic number.

It is an amenable number.

23113421 is a deficient number, since it is larger than the sum of its proper divisors (1442539).

23113421 is a wasteful number, since it uses less digits than its factorization.

23113421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623.

The product of its digits is 144, while the sum is 17.

The square root of 23113421 is about 4807.6419375823. The cubic root of 23113421 is about 284.8534015728.

Adding to 23113421 its reverse (12431132), we get a palindrome (35544553).

The spelling of 23113421 in words is "twenty-three million, one hundred thirteen thousand, four hundred twenty-one".