12251360603541 has 4 divisors (see below), whose sum is σ = 16335147471392. Its totient is φ = 8167573735692.

The previous prime is 12251360603491. The next prime is 12251360603579. The reversal of 12251360603541 is 14530606315221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-12251360603541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12251360603541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12251360603441) 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, 2041893433921 + ... + 2041893433926.

It is an arithmetic number, because the mean of its divisors is an integer number (4083786867848).

Almost surely, 2^{12251360603541} is an apocalyptic number.

It is an amenable number.

12251360603541 is a deficient number, since it is larger than the sum of its proper divisors (4083786867851).

12251360603541 is an equidigital number, since it uses as much as digits as its factorization.

12251360603541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083786867850.

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 12251360603541 its reverse (14530606315221), we get a palindrome (26781966918762).

The spelling of 12251360603541 in words is "twelve trillion, two hundred fifty-one billion, three hundred sixty million, six hundred three thousand, five hundred forty-one".