23531450434 has 8 divisors (see below), whose sum is σ = 35302080060. Its totient is φ = 11764090416.

The previous prime is 23531450431. The next prime is 23531450471. The reversal of 23531450434 is 43405413532.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16244267209 + 7287183225 = 127453^2 + 85365^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23531450434.

It is not an unprimeable number, because it can be changed into a prime (23531450431) 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, 799329 + ... + 828244.

Almost surely, 2^23531450434 is an apocalyptic number.

23531450434 is a deficient number, since it is larger than the sum of its proper divisors (11770629626).

23531450434 is a wasteful number, since it uses less digits than its factorization.

23531450434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634804.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 23531450434 its reverse (43405413532), we get a palindrome (66936863966).

The spelling of 23531450434 in words is "twenty-three billion, five hundred thirty-one million, four hundred fifty thousand, four hundred thirty-four".