13121352051 has 16 divisors (see below), whose sum is σ = 18139081728. Its totient is φ = 8428082400.

The previous prime is 13121352031. The next prime is 13121352073. The reversal of 13121352051 is 15025312131.

It is not a de Polignac number, because 13121352051 - 2⁷ = 13121351923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13121352011) by changing a digit.

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, 289660 + ... + 331881.

It is an arithmetic number, because the mean of its divisors is an integer number (1133692608).

Almost surely, 2^13121352051 is an apocalyptic number.

13121352051 is a deficient number, since it is larger than the sum of its proper divisors (5017729677).

13121352051 is a wasteful number, since it uses less digits than its factorization.

13121352051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621802.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 13121352051 its reverse (15025312131), we get a palindrome (28146664182).

The spelling of 13121352051 in words is "thirteen billion, one hundred twenty-one million, three hundred fifty-two thousand, fifty-one".