131201321131444 has 6 divisors (see below), whose sum is σ = 229602311980034. Its totient is φ = 65600660565720.

The previous prime is 131201321131427. The next prime is 131201321131469. The reversal of 131201321131444 is 444131123102131.

It can be written as a sum of positive squares in only one way, i.e., 121422504179344 + 9778816952100 = 11019188^2 + 3127110^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16400165141427 + ... + 16400165141434.

Almost surely, 2^{131201321131444} is an apocalyptic number.

It is an amenable number.

131201321131444 is a deficient number, since it is larger than the sum of its proper divisors (98400990848590).

131201321131444 is a wasteful number, since it uses less digits than its factorization.

131201321131444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32800330282865 (or 32800330282863 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 131201321131444 its reverse (444131123102131), we get a palindrome (575332444233575).

The spelling of 131201321131444 in words is "one hundred thirty-one trillion, two hundred one billion, three hundred twenty-one million, one hundred thirty-one thousand, four hundred forty-four".