131444304442 has 16 divisors (see below), whose sum is σ = 216638100000. Its totient is φ = 59317572240.

The previous prime is 131444304437. The next prime is 131444304449. The reversal of 131444304442 is 244403444131.

It is a junction number, because it is equal to n+sod(n) for n = 131444304398 and 131444304407.

It is not an unprimeable number, because it can be changed into a prime (131444304449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21488817 + ... + 21494932.

It is an arithmetic number, because the mean of its divisors is an integer number (13539881250).

Almost surely, 2^131444304442 is an apocalyptic number.

131444304442 is a deficient number, since it is larger than the sum of its proper divisors (85193795558).

131444304442 is a wasteful number, since it uses less digits than its factorization.

131444304442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42983901.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 131444304442 its reverse (244403444131), we get a palindrome (375847748573).

The spelling of 131444304442 in words is "one hundred thirty-one billion, four hundred forty-four million, three hundred four thousand, four hundred forty-two".