23115101505 has 16 divisors (see below), whose sum is σ = 37536166464. Its totient is φ = 12144052800.

The previous prime is 23115101461. The next prime is 23115101509. The reversal of 23115101505 is 50510151132.

It is not a de Polignac number, because 23115101505 - 2¹¹ = 23115099457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23115101509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11499046 + ... + 11501055.

It is an arithmetic number, because the mean of its divisors is an integer number (2346010404).

Almost surely, 2^23115101505 is an apocalyptic number.

It is an amenable number.

23115101505 is a deficient number, since it is larger than the sum of its proper divisors (14421064959).

23115101505 is a wasteful number, since it uses less digits than its factorization.

23115101505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23000176.

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 23115101505 its reverse (50510151132), we get a palindrome (73625252637).

The spelling of 23115101505 in words is "twenty-three billion, one hundred fifteen million, one hundred one thousand, five hundred five".