12542311 has 6 divisors (see below), whose sum is σ = 13323800. Its totient is φ = 11804256.

The previous prime is 12542293. The next prime is 12542317. The reversal of 12542311 is 11324521.

It is not a de Polignac number, because 12542311 - 2⁷ = 12542183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21411 + ... + 21988.

Almost surely, 2^12542311 is an apocalyptic number.

12542311 is a deficient number, since it is larger than the sum of its proper divisors (781489).

12542311 is an equidigital number, since it uses as much as digits as its factorization.

12542311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43433 (or 43416 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 12542311 is about 3541.5125299792. The cubic root of 12542311 is about 232.3410004741.

Adding to 12542311 its reverse (11324521), we get a palindrome (23866832).

It can be divided in two parts, 125 and 42311, that added together give a square (42436 = 206²).

The spelling of 12542311 in words is "twelve million, five hundred forty-two thousand, three hundred eleven".