23513516242 has 4 divisors (see below), whose sum is σ = 35270274366. Its totient is φ = 11756758120.

The previous prime is 23513516171. The next prime is 23513516251. The reversal of 23513516242 is 24261531532.

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., 16723921041 + 6789595201 = 129321^2 + 82399^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23513516198 and 23513516207.

It is an unprimeable number.

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, 5878379059 + ... + 5878379062.

Almost surely, 2^23513516242 is an apocalyptic number.

23513516242 is a deficient number, since it is larger than the sum of its proper divisors (11756758124).

23513516242 is a wasteful number, since it uses less digits than its factorization.

23513516242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11756758123.

The product of its digits is 43200, while the sum is 34.

The spelling of 23513516242 in words is "twenty-three billion, five hundred thirteen million, five hundred sixteen thousand, two hundred forty-two".