131530544421 has 8 divisors (see below), whose sum is σ = 175831956480. Its totient is φ = 87458080992.

The previous prime is 131530544407. The next prime is 131530544437. The reversal of 131530544421 is 124445035131.

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

It is not a de Polignac number, because 131530544421 - 2⁹ = 131530543909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131530444421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57235816 + ... + 57238113.

It is an arithmetic number, because the mean of its divisors is an integer number (21978994560).

Almost surely, 2^131530544421 is an apocalyptic number.

It is an amenable number.

131530544421 is a deficient number, since it is larger than the sum of its proper divisors (44301412059).

131530544421 is a wasteful number, since it uses less digits than its factorization.

131530544421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114474315.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 131530544421 its reverse (124445035131), we get a palindrome (255975579552).

The spelling of 131530544421 in words is "one hundred thirty-one billion, five hundred thirty million, five hundred forty-four thousand, four hundred twenty-one".