131023351544 has 8 divisors (see below), whose sum is σ = 245668784160. Its totient is φ = 65511675768.

The previous prime is 131023351513. The next prime is 131023351553. The reversal of 131023351544 is 445153320131.

131023351544 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 131023351544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8188959464 + ... + 8188959479.

It is an arithmetic number, because the mean of its divisors is an integer number (30708598020).

Almost surely, 2^131023351544 is an apocalyptic number.

It is an amenable number.

131023351544 is a deficient number, since it is larger than the sum of its proper divisors (114645432616).

131023351544 is a wasteful number, since it uses less digits than its factorization.

131023351544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377918949 (or 16377918945 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 131023351544 its reverse (445153320131), we get a palindrome (576176671675).

The spelling of 131023351544 in words is "one hundred thirty-one billion, twenty-three million, three hundred fifty-one thousand, five hundred forty-four".