23115240052 has 12 divisors (see below), whose sum is σ = 41005803076. Its totient is φ = 11399296320.

The previous prime is 23115240023. The next prime is 23115240059. The reversal of 23115240052 is 25004251132.

It can be written as a sum of positive squares in 2 ways, for example, as 15073455076 + 8041784976 = 122774^2 + 89676^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23115239999 and 23115240026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23115240059) 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, 39580599 + ... + 39581182.

Almost surely, 2^23115240052 is an apocalyptic number.

It is an amenable number.

23115240052 is a deficient number, since it is larger than the sum of its proper divisors (17890563024).

23115240052 is a wasteful number, since it uses less digits than its factorization.

23115240052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79161858 (or 79161856 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 23115240052 its reverse (25004251132), we get a palindrome (48119491184).

The spelling of 23115240052 in words is "twenty-three billion, one hundred fifteen million, two hundred forty thousand, fifty-two".