23131123133 has 16 divisors (see below), whose sum is σ = 23721285120. Its totient is φ = 22549722624.

The previous prime is 23131123111. The next prime is 23131123163. The reversal of 23131123133 is 33132113132.

It is a cyclic number.

It is not a de Polignac number, because 23131123133 - 2⁸ = 23131122877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23131123099 and 23131123108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131123163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2868335 + ... + 2876387.

It is an arithmetic number, because the mean of its divisors is an integer number (1482580320).

Almost surely, 2^23131123133 is an apocalyptic number.

It is an amenable number.

23131123133 is a deficient number, since it is larger than the sum of its proper divisors (590161987).

23131123133 is a wasteful number, since it uses less digits than its factorization.

23131123133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8588.

The product of its digits is 972, while the sum is 23.

Adding to 23131123133 its reverse (33132113132), we get a palindrome (56263236265).

The spelling of 23131123133 in words is "twenty-three billion, one hundred thirty-one million, one hundred twenty-three thousand, one hundred thirty-three".