12431501 has 2 divisors, whose sum is σ = 12431502. Its totient is φ = 12431500.

The previous prime is 12431479. The next prime is 12431513. The reversal of 12431501 is 10513421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9954025 + 2477476 = 3155^2 + 1574^2 .

It is an emirp because it is prime and its reverse (10513421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12431501 is a prime.

It is a super-2 number, since 2×12431501² = 309084434226002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12431501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12431561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215750 + 6215751.

It is an arithmetic number, because the mean of its divisors is an integer number (6215751).

Almost surely, 2^12431501 is an apocalyptic number.

It is an amenable number.

12431501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431501 is an equidigital number, since it uses as much as digits as its factorization.

12431501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12431501 is about 3525.8333766643. The cubic root of 12431501 is about 231.6547393637.

Adding to 12431501 its reverse (10513421), we get a palindrome (22944922).

It can be divided in two parts, 1243 and 1501, that added together give a cube (2744 = 14³).

The spelling of 12431501 in words is "twelve million, four hundred thirty-one thousand, five hundred one".