13131022321204 has 6 divisors (see below), whose sum is σ = 22979289062114. Its totient is φ = 6565511160600.

The previous prime is 13131022321201. The next prime is 13131022321211. The reversal of 13131022321204 is 40212322013131.

It can be written as a sum of positive squares in only one way, i.e., 12566330189604 + 564692131600 = 3544902^2 + 751460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131022321201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1641377790147 + ... + 1641377790154.

Almost surely, 2^{13131022321204} is an apocalyptic number.

It is an amenable number.

13131022321204 is a deficient number, since it is larger than the sum of its proper divisors (9848266740910).

13131022321204 is a wasteful number, since it uses less digits than its factorization.

13131022321204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282755580305 (or 3282755580303 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13131022321204 its reverse (40212322013131), we get a palindrome (53343344334335).

The spelling of 13131022321204 in words is "thirteen trillion, one hundred thirty-one billion, twenty-two million, three hundred twenty-one thousand, two hundred four".