131222313233 has 4 divisors (see below), whose sum is σ = 143151614448. Its totient is φ = 119293012020.

The previous prime is 131222313227. The next prime is 131222313293. The reversal of 131222313233 is 332313222131.

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: 332313222131 = 11 ⋅30210292921.

It is a cyclic number.

It is not a de Polignac number, because 131222313233 - 2⁶ = 131222313169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131222313293) 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, 5964650591 + ... + 5964650612.

It is an arithmetic number, because the mean of its divisors is an integer number (35787903612).

Almost surely, 2^131222313233 is an apocalyptic number.

It is an amenable number.

131222313233 is a deficient number, since it is larger than the sum of its proper divisors (11929301215).

131222313233 is a wasteful number, since it uses less digits than its factorization.

131222313233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11929301214.

The product of its digits is 3888, while the sum is 26.

Adding to 131222313233 its reverse (332313222131), we get a palindrome (463535535364).

The spelling of 131222313233 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred thirteen thousand, two hundred thirty-three".