131232144021 has 8 divisors (see below), whose sum is σ = 190883118624. Its totient is φ = 79534632720.

The previous prime is 131232144007. The next prime is 131232144067. The reversal of 131232144021 is 120441232131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131232144021 - 2⁷ = 131232143893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131232143982 and 131232144000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131232146021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1988365786 + ... + 1988365851.

It is an arithmetic number, because the mean of its divisors is an integer number (23860389828).

Almost surely, 2^131232144021 is an apocalyptic number.

131232144021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131232144021 is a deficient number, since it is larger than the sum of its proper divisors (59650974603).

131232144021 is a wasteful number, since it uses less digits than its factorization.

131232144021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976731651.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 131232144021 its reverse (120441232131), we get a palindrome (251673376152).

The spelling of 131232144021 in words is "one hundred thirty-one billion, two hundred thirty-two million, one hundred forty-four thousand, twenty-one".