131211301111444 has 12 divisors (see below), whose sum is σ = 229620257496000. Its totient is φ = 65605513255448.

The previous prime is 131211301111421. The next prime is 131211301111459. The reversal of 131211301111444 is 444111103112131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32159674 + ... + 36009265.

It is an arithmetic number, because the mean of its divisors is an integer number (19135021458000).

Almost surely, 2^{131211301111444} is an apocalyptic number.

It is an amenable number.

131211301111444 is a deficient number, since it is larger than the sum of its proper divisors (98408956384556).

131211301111444 is a wasteful number, since it uses less digits than its factorization.

131211301111444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68650142 (or 68650140 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 131211301111444 its reverse (444111103112131), we get a palindrome (575322404223575).

The spelling of 131211301111444 in words is "one hundred thirty-one trillion, two hundred eleven billion, three hundred one million, one hundred eleven thousand, four hundred forty-four".