131103220255444 has 12 divisors (see below), whose sum is σ = 229430846845984. Its totient is φ = 65551549728024.

The previous prime is 131103220255433. The next prime is 131103220255459. The reversal of 131103220255444 is 444552022301131.

It is a super-2 number, since 2×131103220255444² (a number of 29 digits) contains 22 as substring.

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, 10026702 + ... + 19045765.

Almost surely, 2^{131103220255444} is an apocalyptic number.

It is an amenable number.

131103220255444 is a deficient number, since it is larger than the sum of its proper divisors (98327626590540).

131103220255444 is a wasteful number, since it uses less digits than its factorization.

131103220255444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30199854 (or 30199852 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 131103220255444 its reverse (444552022301131), we get a palindrome (575655242556575).

The spelling of 131103220255444 in words is "one hundred thirty-one trillion, one hundred three billion, two hundred twenty million, two hundred fifty-five thousand, four hundred forty-four".