23513453234 has 4 divisors (see below), whose sum is σ = 35270179854. Its totient is φ = 11756726616.

The previous prime is 23513453231. The next prime is 23513453251. The reversal of 23513453234 is 43235431532.

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., 21510622225 + 2002831009 = 146665^2 + 44753^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23513453194 and 23513453203.

It is not an unprimeable number, because it can be changed into a prime (23513453231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5878363307 + ... + 5878363310.

Almost surely, 2^23513453234 is an apocalyptic number.

23513453234 is a deficient number, since it is larger than the sum of its proper divisors (11756726620).

23513453234 is a wasteful number, since it uses less digits than its factorization.

23513453234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11756726619.

The product of its digits is 129600, while the sum is 35.

Adding to 23513453234 its reverse (43235431532), we get a palindrome (66748884766).

The spelling of 23513453234 in words is "twenty-three billion, five hundred thirteen million, four hundred fifty-three thousand, two hundred thirty-four".