131103613444 has 12 divisors (see below), whose sum is σ = 229490927568. Its totient is φ = 65534777000.

The previous prime is 131103613409. The next prime is 131103613481. The reversal of 131103613444 is 444316301131.

It is a super-2 number, since 2×131103613444² (a number of 23 digits) contains 22 as substring.

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, 4240102 + ... + 4270909.

It is an arithmetic number, because the mean of its divisors is an integer number (19124243964).

Almost surely, 2^131103613444 is an apocalyptic number.

It is an amenable number.

131103613444 is a deficient number, since it is larger than the sum of its proper divisors (98387314124).

131103613444 is a wasteful number, since it uses less digits than its factorization.

131103613444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8514866 (or 8514864 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 131103613444 its reverse (444316301131), we get a palindrome (575419914575).

The spelling of 131103613444 in words is "one hundred thirty-one billion, one hundred three million, six hundred thirteen thousand, four hundred forty-four".