12523121344454 has 16 divisors (see below), whose sum is σ = 21491568441600. Its totient is φ = 5361211899144.

The previous prime is 12523121344411. The next prime is 12523121344483. The reversal of 12523121344454 is 45444312132521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486662144 + ... + 486687875.

It is an arithmetic number, because the mean of its divisors is an integer number (1343223027600).

Almost surely, 2^{12523121344454} is an apocalyptic number.

12523121344454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12523121344454 is a deficient number, since it is larger than the sum of its proper divisors (8968447097146).

12523121344454 is an equidigital number, since it uses as much as digits as its factorization.

12523121344454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973350947.

The product of its digits is 460800, while the sum is 41.

Adding to 12523121344454 its reverse (45444312132521), we get a palindrome (57967433476975).

The spelling of 12523121344454 in words is "twelve trillion, five hundred twenty-three billion, one hundred twenty-one million, three hundred forty-four thousand, four hundred fifty-four".