131103220405244 has 12 divisors (see below), whose sum is σ = 230111438784864. Its totient is φ = 65357095038144.

The previous prime is 131103220405243. The next prime is 131103220405259. The reversal of 131103220405244 is 442504022301131.

It is a self number, because there is not a number n which added to its sum of digits gives 131103220405244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131103220405243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48628789604 + ... + 48628792299.

It is an arithmetic number, because the mean of its divisors is an integer number (19175953232072).

Almost surely, 2^{131103220405244} is an apocalyptic number.

It is an amenable number.

131103220405244 is a deficient number, since it is larger than the sum of its proper divisors (99008218379620).

131103220405244 is a wasteful number, since it uses less digits than its factorization.

131103220405244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97257582244 (or 97257582242 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 131103220405244 its reverse (442504022301131), we get a palindrome (573607242706375).

The spelling of 131103220405244 in words is "one hundred thirty-one trillion, one hundred three billion, two hundred twenty million, four hundred five thousand, two hundred forty-four".