23035015531 has 4 divisors (see below), whose sum is σ = 25129107864. Its totient is φ = 20940923200.

The previous prime is 23035015501. The next prime is 23035015537. The reversal of 23035015531 is 13551053032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23035015531 - 2¹¹ = 23035013483 is a prime.

It is a super-2 number, since 2×23035015531² (a number of 22 digits) contains 22 as substring.

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 23035015531.

It is not an unprimeable number, because it can be changed into a prime (23035015537) 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, 1047046150 + ... + 1047046171.

It is an arithmetic number, because the mean of its divisors is an integer number (6282276966).

Almost surely, 2^23035015531 is an apocalyptic number.

23035015531 is a deficient number, since it is larger than the sum of its proper divisors (2094092333).

23035015531 is a wasteful number, since it uses less digits than its factorization.

23035015531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094092332.

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 23035015531 its reverse (13551053032), we get a palindrome (36586068563).

It can be divided in two parts, 2303501 and 5531, that added together give a palindrome (2309032).

The spelling of 23035015531 in words is "twenty-three billion, thirty-five million, fifteen thousand, five hundred thirty-one".