12452533320431 has 4 divisors (see below), whose sum is σ = 13107929811000. Its totient is φ = 11797136829864.

The previous prime is 12452533320389. The next prime is 12452533320473. The reversal of 12452533320431 is 13402333525421.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12452533320389) and next prime (12452533320473).

It is a cyclic number.

It is not a de Polignac number, because 12452533320431 - 2²² = 12452529126127 is a prime.

It is a super-2 number, since 2×12452533320431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12452533340431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327698245256 + ... + 327698245293.

It is an arithmetic number, because the mean of its divisors is an integer number (3276982452750).

Almost surely, 2^{12452533320431} is an apocalyptic number.

12452533320431 is a deficient number, since it is larger than the sum of its proper divisors (655396490569).

12452533320431 is an equidigital number, since it uses as much as digits as its factorization.

12452533320431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655396490568.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 12452533320431 its reverse (13402333525421), we get a palindrome (25854866845852).

The spelling of 12452533320431 in words is "twelve trillion, four hundred fifty-two billion, five hundred thirty-three million, three hundred twenty thousand, four hundred thirty-one".