5131442354221 has 8 divisors (see below), whose sum is σ = 5147710977024. Its totient is φ = 5115174242160.

The previous prime is 5131442354197. The next prime is 5131442354257. The reversal of 5131442354221 is 1224532441315.

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

It is a cyclic number.

It is not a de Polignac number, because 5131442354221 - 2²⁹ = 5130905483309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131442354261) 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, 37601316 + ... + 37737538.

It is an arithmetic number, because the mean of its divisors is an integer number (643463872128).

Almost surely, 2^{5131442354221} is an apocalyptic number.

It is an amenable number.

5131442354221 is a deficient number, since it is larger than the sum of its proper divisors (16268622803).

5131442354221 is a wasteful number, since it uses less digits than its factorization.

5131442354221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255371.

The product of its digits is 115200, while the sum is 37.

Adding to 5131442354221 its reverse (1224532441315), we get a palindrome (6355974795536).

The spelling of 5131442354221 in words is "five trillion, one hundred thirty-one billion, four hundred forty-two million, three hundred fifty-four thousand, two hundred twenty-one".