123134533131 has 8 divisors (see below), whose sum is σ = 165472129024. Its totient is φ = 81443313000.

The previous prime is 123134533019. The next prime is 123134533133. The reversal of 123134533131 is 131335431321.

It is a happy number.

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

It is not a de Polignac number, because 123134533131 - 2¹¹ = 123134531083 is a prime.

It is a super-3 number, since 3×123134533131³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123134533133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161593495 + ... + 161594256.

It is an arithmetic number, because the mean of its divisors is an integer number (20684016128).

Almost surely, 2^123134533131 is an apocalyptic number.

123134533131 is a deficient number, since it is larger than the sum of its proper divisors (42337595893).

123134533131 is a wasteful number, since it uses less digits than its factorization.

123134533131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323187881.

The product of its digits is 9720, while the sum is 30.

Adding to 123134533131 its reverse (131335431321), we get a palindrome (254469964452).

The spelling of 123134533131 in words is "one hundred twenty-three billion, one hundred thirty-four million, five hundred thirty-three thousand, one hundred thirty-one".