131223313331 has 8 divisors (see below), whose sum is σ = 148089006000. Its totient is φ = 115180337440.

The previous prime is 131223313307. The next prime is 131223313337. The reversal of 131223313331 is 133313322131.

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 131223313331 - 2²² = 131219119027 is a prime.

It is a super-2 number, since 2×131223313331² (a number of 23 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 131223313331.

It is not an unprimeable number, because it can be changed into a prime (131223313337) 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, 205678856 + ... + 205679493.

It is an arithmetic number, because the mean of its divisors is an integer number (18511125750).

Almost surely, 2^131223313331 is an apocalyptic number.

131223313331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131223313331 is a deficient number, since it is larger than the sum of its proper divisors (16865692669).

131223313331 is a wasteful number, since it uses less digits than its factorization.

131223313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411358389.

The product of its digits is 2916, while the sum is 26.

Adding to 131223313331 its reverse (133313322131), we get a palindrome (264536635462).

The spelling of 131223313331 in words is "one hundred thirty-one billion, two hundred twenty-three million, three hundred thirteen thousand, three hundred thirty-one".