131444002320 has 40 divisors (see below), whose sum is σ = 407476407936. Its totient is φ = 35051733888.

The previous prime is 131444002289. The next prime is 131444002321. The reversal of 131444002320 is 23200444131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (131444002321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273841432 + ... + 273841911.

Almost surely, 2^131444002320 is an apocalyptic number.

131444002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131444002320 is an abundant number, since it is smaller than the sum of its proper divisors (276032405616).

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

131444002320 is a wasteful number, since it uses less digits than its factorization.

131444002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547683359 (or 547683353 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 131444002320 its reverse (23200444131), we get a palindrome (154644446451).

The spelling of 131444002320 in words is "one hundred thirty-one billion, four hundred forty-four million, two thousand, three hundred twenty".