23012440432 has 20 divisors (see below), whose sum is σ = 44697804336. Its totient is φ = 11477523200.

The previous prime is 23012440427. The next prime is 23012440433. The reversal of 23012440432 is 23404421032.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23012440397 and 23012440406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012440433) 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, 1786948 + ... + 1799779.

Almost surely, 2^23012440432 is an apocalyptic number.

It is an amenable number.

23012440432 is a deficient number, since it is larger than the sum of its proper divisors (21685363904).

23012440432 is a wasteful number, since it uses less digits than its factorization.

23012440432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587136 (or 3587130 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 23012440432 its reverse (23404421032), we get a palindrome (46416861464).

The spelling of 23012440432 in words is "twenty-three billion, twelve million, four hundred forty thousand, four hundred thirty-two".