12323513142 has 24 divisors (see below), whose sum is σ = 27562267200. Its totient is φ = 3975326640.

The previous prime is 12323513029. The next prime is 12323513159. The reversal of 12323513142 is 24131532321.

12323513142 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 3 + 513 + 142 = 666.

It is a super-2 number, since 2×12323513142² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11042017 + ... + 11043132.

It is an arithmetic number, because the mean of its divisors is an integer number (1148427800).

Almost surely, 2^12323513142 is an apocalyptic number.

12323513142 is an abundant number, since it is smaller than the sum of its proper divisors (15238754058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12323513142 is a wasteful number, since it uses less digits than its factorization.

12323513142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22085188 (or 22085185 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The spelling of 12323513142 in words is "twelve billion, three hundred twenty-three million, five hundred thirteen thousand, one hundred forty-two".