131144304421 has 8 divisors (see below), whose sum is σ = 141823261440. Its totient is φ = 120549766512.

The previous prime is 131144304419. The next prime is 131144304427. The reversal of 131144304421 is 124403441131.

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 131144304421 - 2¹ = 131144304419 is a prime.

It is a super-3 number, since 3×131144304421³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131144304421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131144304427) 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, 21101545 + ... + 21107758.

It is an arithmetic number, because the mean of its divisors is an integer number (17727907680).

Almost surely, 2^131144304421 is an apocalyptic number.

It is an amenable number.

131144304421 is a deficient number, since it is larger than the sum of its proper divisors (10678957019).

131144304421 is a wasteful number, since it uses less digits than its factorization.

131144304421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42209555.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 131144304421 its reverse (124403441131), we get a palindrome (255547745552).

The spelling of 131144304421 in words is "one hundred thirty-one billion, one hundred forty-four million, three hundred four thousand, four hundred twenty-one".