23431532441 has 4 divisors (see below), whose sum is σ = 23432034612. Its totient is φ = 23431030272.

The previous prime is 23431532401. The next prime is 23431532459. The reversal of 23431532441 is 14423513432.

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 11327132041 + 12104400400 = 106429^2 + 110020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23431532441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23431532398 and 23431532407.

It is not an unprimeable number, because it can be changed into a prime (23431532401) 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, 173000 + ... + 277113.

It is an arithmetic number, because the mean of its divisors is an integer number (5858008653).

Almost surely, 2^23431532441 is an apocalyptic number.

It is an amenable number.

23431532441 is a deficient number, since it is larger than the sum of its proper divisors (502171).

23431532441 is an equidigital number, since it uses as much as digits as its factorization.

23431532441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502170.

The product of its digits is 34560, while the sum is 32.

The spelling of 23431532441 in words is "twenty-three billion, four hundred thirty-one million, five hundred thirty-two thousand, four hundred forty-one".