23125143513 has 4 divisors (see below), whose sum is σ = 30833524688. Its totient is φ = 15416762340.

The previous prime is 23125143491. The next prime is 23125143551. The reversal of 23125143513 is 31534152132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23125143513 - 2¹³ = 23125135321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23125143913) 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, 3854190583 + ... + 3854190588.

It is an arithmetic number, because the mean of its divisors is an integer number (7708381172).

Almost surely, 2^23125143513 is an apocalyptic number.

It is an amenable number.

23125143513 is a deficient number, since it is larger than the sum of its proper divisors (7708381175).

23125143513 is an equidigital number, since it uses as much as digits as its factorization.

23125143513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7708381174.

The product of its digits is 10800, while the sum is 30.

Adding to 23125143513 its reverse (31534152132), we get a palindrome (54659295645).

The spelling of 23125143513 in words is "twenty-three billion, one hundred twenty-five million, one hundred forty-three thousand, five hundred thirteen".