23531523101 has 4 divisors (see below), whose sum is σ = 23531840604. Its totient is φ = 23531205600.

The previous prime is 23531523079. The next prime is 23531523133. The reversal of 23531523101 is 10132513532.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 15037135876 + 8494387225 = 122626^2 + 92165^2 .

It is a cyclic number.

It is not a de Polignac number, because 23531523101 - 2¹⁴ = 23531506717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23531523151) 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, 18071 + ... + 217691.

It is an arithmetic number, because the mean of its divisors is an integer number (5882960151).

Almost surely, 2^23531523101 is an apocalyptic number.

It is an amenable number.

23531523101 is a deficient number, since it is larger than the sum of its proper divisors (317503).

23531523101 is a wasteful number, since it uses less digits than its factorization.

23531523101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317502.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 23531523101 in words is "twenty-three billion, five hundred thirty-one million, five hundred twenty-three thousand, one hundred one".