23123724 has 24 divisors (see below), whose sum is σ = 58106160. Its totient is φ = 7114944.

The previous prime is 23123719. The next prime is 23123729. The reversal of 23123724 is 42732132.

It is an interprime number because it is at equal distance from previous prime (23123719) and next prime (23123729).

It is a super-2 number, since 2×23123724² = 1069413223256352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23123694 and 23123703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73959 + ... + 74270.

It is an arithmetic number, because the mean of its divisors is an integer number (2421090).

Almost surely, 2^23123724 is an apocalyptic number.

It is an amenable number.

23123724 is an abundant number, since it is smaller than the sum of its proper divisors (34982436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23123724 is a wasteful number, since it uses less digits than its factorization.

23123724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148249 (or 148247 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 23123724 is about 4808.7133414251. The cubic root of 23123724 is about 284.8957205445.

Adding to 23123724 its reverse (42732132), we get a palindrome (65855856).

The spelling of 23123724 in words is "twenty-three million, one hundred twenty-three thousand, seven hundred twenty-four".