12454553041531 has 4 divisors (see below), whose sum is σ = 12791162583232. Its totient is φ = 12117943499832.

The previous prime is 12454553041529. The next prime is 12454553041547. The reversal of 12454553041531 is 13514035545421.

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

It is a cyclic number.

It is not a de Polignac number, because 12454553041531 - 2¹ = 12454553041529 is a prime.

It is a super-2 number, since 2×12454553041531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12454553041631) 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, 168304770795 + ... + 168304770868.

It is an arithmetic number, because the mean of its divisors is an integer number (3197790645808).

Almost surely, 2^{12454553041531} is an apocalyptic number.

12454553041531 is a deficient number, since it is larger than the sum of its proper divisors (336609541701).

12454553041531 is an equidigital number, since it uses as much as digits as its factorization.

12454553041531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336609541700.

The product of its (nonzero) digits is 720000, while the sum is 43.

Adding to 12454553041531 its reverse (13514035545421), we get a palindrome (25968588586952).

The spelling of 12454553041531 in words is "twelve trillion, four hundred fifty-four billion, five hundred fifty-three million, forty-one thousand, five hundred thirty-one".