23515034012 has 6 divisors (see below), whose sum is σ = 41151309528. Its totient is φ = 11757517004.

The previous prime is 23515033987. The next prime is 23515034093. The reversal of 23515034012 is 21043051532.

It is a happy number.

It is a super-2 number, since 2×23515034012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2939379248 + ... + 2939379255.

It is an arithmetic number, because the mean of its divisors is an integer number (6858551588).

Almost surely, 2^23515034012 is an apocalyptic number.

It is an amenable number.

23515034012 is a deficient number, since it is larger than the sum of its proper divisors (17636275516).

23515034012 is a wasteful number, since it uses less digits than its factorization.

23515034012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5878758507 (or 5878758505 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 23515034012 its reverse (21043051532), we get a palindrome (44558085544).

The spelling of 23515034012 in words is "twenty-three billion, five hundred fifteen million, thirty-four thousand, twelve".