23131033111 has 8 divisors (see below), whose sum is σ = 23796283680. Its totient is φ = 22474257312.

The previous prime is 23131033087. The next prime is 23131033141. The reversal of 23131033111 is 11133013132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23131033111 - 2¹³ = 23131024919 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 (23131033141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113156 + ... + 2124073.

It is an arithmetic number, because the mean of its divisors is an integer number (2974535460).

Almost surely, 2^23131033111 is an apocalyptic number.

23131033111 is a deficient number, since it is larger than the sum of its proper divisors (665250569).

23131033111 is a wasteful number, since it uses less digits than its factorization.

23131033111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237385.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 23131033111 its reverse (11133013132), we get a palindrome (34264046243).

The spelling of 23131033111 in words is "twenty-three billion, one hundred thirty-one million, thirty-three thousand, one hundred eleven".