131211301233 has 16 divisors (see below), whose sum is σ = 177263102016. Its totient is φ = 86319313920.

The previous prime is 131211301217. The next prime is 131211301303. The reversal of 131211301233 is 332103112131.

It is a happy number.

It is not a de Polignac number, because 131211301233 - 2⁴ = 131211301217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131211301033) 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 15 ways as a sum of consecutive naturals, for example, 94048 + ... + 520833.

It is an arithmetic number, because the mean of its divisors is an integer number (11078943876).

Almost surely, 2^131211301233 is an apocalyptic number.

It is an amenable number.

131211301233 is a deficient number, since it is larger than the sum of its proper divisors (46051800783).

131211301233 is an equidigital number, since it uses as much as digits as its factorization.

131211301233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615824.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 131211301233 its reverse (332103112131), we get a palindrome (463314413364).

The spelling of 131211301233 in words is "one hundred thirty-one billion, two hundred eleven million, three hundred one thousand, two hundred thirty-three".