23403001231 has 4 divisors (see below), whose sum is σ = 23453115192. Its totient is φ = 23352887272.

The previous prime is 23403001211. The next prime is 23403001241. The reversal of 23403001231 is 13210030432.

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

It is a cyclic number.

It is not a de Polignac number, because 23403001231 - 2⁷ = 23403001103 is a prime.

It is a super-2 number, since 2×23403001231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23403001199 and 23403001208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403001201) 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, 25056280 + ... + 25057213.

It is an arithmetic number, because the mean of its divisors is an integer number (5863278798).

Almost surely, 2^23403001231 is an apocalyptic number.

23403001231 is a deficient number, since it is larger than the sum of its proper divisors (50113961).

23403001231 is an equidigital number, since it uses as much as digits as its factorization.

23403001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50113960.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23403001231 its reverse (13210030432), we get a palindrome (36613031663).

The spelling of 23403001231 in words is "twenty-three billion, four hundred three million, one thousand, two hundred thirty-one".