23040435535 has 16 divisors (see below), whose sum is σ = 29929624704. Its totient is φ = 16926308352.

The previous prime is 23040435521. The next prime is 23040435553. The reversal of 23040435535 is 53553404032.

It is a cyclic number.

It is not a de Polignac number, because 23040435535 - 2⁹ = 23040435023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23040435535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905767 + ... + 930856.

It is an arithmetic number, because the mean of its divisors is an integer number (1870601544).

Almost surely, 2^23040435535 is an apocalyptic number.

23040435535 is a deficient number, since it is larger than the sum of its proper divisors (6889189169).

23040435535 is a wasteful number, since it uses less digits than its factorization.

23040435535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836834.

The product of its (nonzero) digits is 108000, while the sum is 34.

Adding to 23040435535 its reverse (53553404032), we get a palindrome (76593839567).

The spelling of 23040435535 in words is "twenty-three billion, forty million, four hundred thirty-five thousand, five hundred thirty-five".