131123122221331 has 8 divisors (see below), whose sum is σ = 131774809300640. Its totient is φ = 130473050228928.

The previous prime is 131123122221319. The next prime is 131123122221337. The reversal of 131123122221331 is 133122221321131.

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 131123122221331 - 2⁹ = 131123122220819 is a prime.

It is a super-2 number, since 2×131123122221331² (a number of 29 digits) contains 22 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 131123122221331.

It is not an unprimeable number, because it can be changed into a prime (131123122221337) 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, 403608951 + ... + 403933696.

It is an arithmetic number, because the mean of its divisors is an integer number (16471851162580).

Almost surely, 2^{131123122221331} is an apocalyptic number.

131123122221331 is a deficient number, since it is larger than the sum of its proper divisors (651687079309).

131123122221331 is an equidigital number, since it uses as much as digits as its factorization.

131123122221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807543453.

The product of its digits is 2592, while the sum is 28.

Adding to 131123122221331 its reverse (133122221321131), we get a palindrome (264245343542462).

The spelling of 131123122221331 in words is "one hundred thirty-one trillion, one hundred twenty-three billion, one hundred twenty-two million, two hundred twenty-one thousand, three hundred thirty-one".