131065226421 has 8 divisors (see below), whose sum is σ = 176965706880. Its totient is φ = 86270781792.

The previous prime is 131065226393. The next prime is 131065226423. The reversal of 131065226421 is 124622560131.

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

It is not a de Polignac number, because 131065226421 - 2¹⁹ = 131064702133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131065226423) 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, 276508680 + ... + 276509153.

It is an arithmetic number, because the mean of its divisors is an integer number (22120713360).

Almost surely, 2^131065226421 is an apocalyptic number.

It is an amenable number.

131065226421 is a deficient number, since it is larger than the sum of its proper divisors (45900480459).

131065226421 is an equidigital number, since it uses as much as digits as its factorization.

131065226421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553017915.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 131065226421 its reverse (124622560131), we get a palindrome (255687786552).

The spelling of 131065226421 in words is "one hundred thirty-one billion, sixty-five million, two hundred twenty-six thousand, four hundred twenty-one".