23115134535 has 16 divisors (see below), whose sum is σ = 37068472320. Its totient is φ = 12299986080.

The previous prime is 23115134533. The next prime is 23115134561. The reversal of 23115134535 is 53543151132.

It is not a de Polignac number, because 23115134535 - 2¹ = 23115134533 is a prime.

It is a super-2 number, since 2×23115134535² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23115134496 and 23115134505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23115134533) 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, 1748551 + ... + 1761720.

It is an arithmetic number, because the mean of its divisors is an integer number (2316779520).

Almost surely, 2^23115134535 is an apocalyptic number.

23115134535 is a deficient number, since it is larger than the sum of its proper divisors (13953337785).

23115134535 is a wasteful number, since it uses less digits than its factorization.

23115134535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510718.

The product of its digits is 27000, while the sum is 33.

Adding to 23115134535 its reverse (53543151132), we get a palindrome (76658285667).

The spelling of 23115134535 in words is "twenty-three billion, one hundred fifteen million, one hundred thirty-four thousand, five hundred thirty-five".