12140023 has 16 divisors (see below), whose sum is σ = 14783040. Its totient is φ = 9765888.

The previous prime is 12139991. The next prime is 12140039. The reversal of 12140023 is 32004121.

It is not a de Polignac number, because 12140023 - 2⁵ = 12139991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12139985 and 12140012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34215 + ... + 34567.

It is an arithmetic number, because the mean of its divisors is an integer number (923940).

Almost surely, 2^12140023 is an apocalyptic number.

12140023 is a deficient number, since it is larger than the sum of its proper divisors (2643017).

12140023 is an frugal number, since it uses more digits than its factorization.

12140023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12140023 is about 3484.2535786019. The cubic root of 12140023 is about 229.8298868139.

Adding to 12140023 its reverse (32004121), we get a palindrome (44144144).

The spelling of 12140023 in words is "twelve million, one hundred forty thousand, twenty-three".