23432144434 has 4 divisors (see below), whose sum is σ = 35148216654. Its totient is φ = 11716072216.

The previous prime is 23432144399. The next prime is 23432144443. The reversal of 23432144434 is 43444123432.

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

It can be written as a sum of positive squares in only one way, i.e., 15117440209 + 8314704225 = 122953^2 + 91185^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23432144434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5858036107 + ... + 5858036110.

Almost surely, 2^23432144434 is an apocalyptic number.

23432144434 is a deficient number, since it is larger than the sum of its proper divisors (11716072220).

23432144434 is a wasteful number, since it uses less digits than its factorization.

23432144434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11716072219.

The product of its digits is 110592, while the sum is 34.

Adding to 23432144434 its reverse (43444123432), we get a palindrome (66876267866).

The spelling of 23432144434 in words is "twenty-three billion, four hundred thirty-two million, one hundred forty-four thousand, four hundred thirty-four".