23523063131 has 4 divisors (see below), whose sum is σ = 24158821632. Its totient is φ = 22887304632.

The previous prime is 23523063119. The next prime is 23523063163. The reversal of 23523063131 is 13136032532.

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 23523063131 - 2¹⁰ = 23523062107 is a prime.

It is a super-2 number, since 2×23523063131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23523063094 and 23523063103.

It is not an unprimeable number, because it can be changed into a prime (23523063101) 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, 317879195 + ... + 317879268.

It is an arithmetic number, because the mean of its divisors is an integer number (6039705408).

Almost surely, 2^23523063131 is an apocalyptic number.

23523063131 is a deficient number, since it is larger than the sum of its proper divisors (635758501).

23523063131 is an equidigital number, since it uses as much as digits as its factorization.

23523063131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635758500.

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 23523063131 its reverse (13136032532), we get a palindrome (36659095663).

The spelling of 23523063131 in words is "twenty-three billion, five hundred twenty-three million, sixty-three thousand, one hundred thirty-one".