131021434340144 has 20 divisors (see below), whose sum is σ = 255272207972760. Its totient is φ = 65144735508480.

The previous prime is 131021434340131. The next prime is 131021434340161. The reversal of 131021434340144 is 441043434120131.

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, 22873850897 + ... + 22873856624.

It is an arithmetic number, because the mean of its divisors is an integer number (12763610398638).

Almost surely, 2^{131021434340144} is an apocalyptic number.

It is an amenable number.

131021434340144 is a deficient number, since it is larger than the sum of its proper divisors (124250773632616).

131021434340144 is a wasteful number, since it uses less digits than its factorization.

131021434340144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45747707708 (or 45747707702 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 131021434340144 its reverse (441043434120131), we get a palindrome (572064868460275).

The spelling of 131021434340144 in words is "one hundred thirty-one trillion, twenty-one billion, four hundred thirty-four million, three hundred forty thousand, one hundred forty-four".