12452431261 has 16 divisors (see below), whose sum is σ = 13732648960. Its totient is φ = 11246059440.

The previous prime is 12452431207. The next prime is 12452431367. The reversal of 12452431261 is 16213425421.

12452431261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12452431261 - 2²¹ = 12450334109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12452431561) 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, 118311 + ... + 197236.

It is an arithmetic number, because the mean of its divisors is an integer number (858290560).

Almost surely, 2^12452431261 is an apocalyptic number.

It is an amenable number.

12452431261 is a deficient number, since it is larger than the sum of its proper divisors (1280217699).

12452431261 is a wasteful number, since it uses less digits than its factorization.

12452431261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315664.

The product of its digits is 11520, while the sum is 31.

Adding to 12452431261 its reverse (16213425421), we get a palindrome (28665856682).

The spelling of 12452431261 in words is "twelve billion, four hundred fifty-two million, four hundred thirty-one thousand, two hundred sixty-one".