131021444402144 has 24 divisors (see below), whose sum is σ = 258049903537440. Its totient is φ = 65484960964096.

The previous prime is 131021444402117. The next prime is 131021444402159. The reversal of 131021444402144 is 441204444120131.

It is a super-2 number, since 2×131021444402144² (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, 804956009 + ... + 805118760.

It is an arithmetic number, because the mean of its divisors is an integer number (10752079314060).

Almost surely, 2^{131021444402144} is an apocalyptic number.

It is an amenable number.

131021444402144 is a deficient number, since it is larger than the sum of its proper divisors (127028459135296).

131021444402144 is a wasteful number, since it uses less digits than its factorization.

131021444402144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610077322 (or 1610077314 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 35.

Adding to 131021444402144 its reverse (441204444120131), we get a palindrome (572225888522275).

The spelling of 131021444402144 in words is "one hundred thirty-one trillion, twenty-one billion, four hundred forty-four million, four hundred two thousand, one hundred forty-four".