131230220333 has 4 divisors (see below), whose sum is σ = 131572858368. Its totient is φ = 130887582300.

The previous prime is 131230220249. The next prime is 131230220383. The reversal of 131230220333 is 333022032131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 333022032131 = 37 ⋅9000595463.

It is a cyclic number.

It is not a de Polignac number, because 131230220333 - 2²⁰ = 131229171757 is a prime.

It is a super-3 number, since 3×131230220333³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131230220299 and 131230220308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131230220383) 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 3 ways as a sum of consecutive naturals, for example, 171318443 + ... + 171319208.

It is an arithmetic number, because the mean of its divisors is an integer number (32893214592).

Almost surely, 2^131230220333 is an apocalyptic number.

It is an amenable number.

131230220333 is a deficient number, since it is larger than the sum of its proper divisors (342638035).

131230220333 is an equidigital number, since it uses as much as digits as its factorization.

131230220333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342638034.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 131230220333 its reverse (333022032131), we get a palindrome (464252252464).

The spelling of 131230220333 in words is "one hundred thirty-one billion, two hundred thirty million, two hundred twenty thousand, three hundred thirty-three".