123423253131 has 8 divisors (see below), whose sum is σ = 171719308800. Its totient is φ = 78704683112.

The previous prime is 123423253123. The next prime is 123423253141. The reversal of 123423253131 is 131352324321.

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

It is not a de Polignac number, because 123423253131 - 2³ = 123423253123 is a prime.

It is a super-2 number, since 2×123423253131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123423253111) 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, 894371331 + ... + 894371468.

It is an arithmetic number, because the mean of its divisors is an integer number (21464913600).

Almost surely, 2^123423253131 is an apocalyptic number.

123423253131 is a deficient number, since it is larger than the sum of its proper divisors (48296055669).

123423253131 is a wasteful number, since it uses less digits than its factorization.

123423253131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788742825.

The product of its digits is 12960, while the sum is 30.

Adding to 123423253131 its reverse (131352324321), we get a palindrome (254775577452).

The spelling of 123423253131 in words is "one hundred twenty-three billion, four hundred twenty-three million, two hundred fifty-three thousand, one hundred thirty-one".