131121230514144 has 48 divisors (see below), whose sum is σ = 370669632418512. Its totient is φ = 40344994003968.

The previous prime is 131121230514073. The next prime is 131121230514161. The reversal of 131121230514144 is 441415032121131.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52532543029 + ... + 52532545524.

It is an arithmetic number, because the mean of its divisors is an integer number (7722284008719).

Almost surely, 2^{131121230514144} is an apocalyptic number.

It is an amenable number.

131121230514144 is an abundant number, since it is smaller than the sum of its proper divisors (239548401904368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131121230514144 is a wasteful number, since it uses less digits than its factorization.

131121230514144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105065088579 (or 105065088571 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 131121230514144 its reverse (441415032121131), we get a palindrome (572536262635275).

The spelling of 131121230514144 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, two hundred thirty million, five hundred fourteen thousand, one hundred forty-four".