13121305054 has 32 divisors (see below), whose sum is σ = 23299436160. Its totient is φ = 5463400800.

The previous prime is 13121305049. The next prime is 13121305081. The reversal of 13121305054 is 45050312131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137644 + ... + 212575.

It is an arithmetic number, because the mean of its divisors is an integer number (728107380).

Almost surely, 2^13121305054 is an apocalyptic number.

13121305054 is a deficient number, since it is larger than the sum of its proper divisors (10178131106).

13121305054 is a wasteful number, since it uses less digits than its factorization.

13121305054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350376.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 13121305054 its reverse (45050312131), we get a palindrome (58171617185).

The spelling of 13121305054 in words is "thirteen billion, one hundred twenty-one million, three hundred five thousand, fifty-four".