131144031233 has 4 divisors (see below), whose sum is σ = 131145940548. Its totient is φ = 131142121920.

The previous prime is 131144031229. The next prime is 131144031241. The reversal of 131144031233 is 332130441131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130633813489 + 510217744 = 361433^2 + 22588^2 .

It is a cyclic number.

It is not a de Polignac number, because 131144031233 - 2² = 131144031229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131144031283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847628 + ... + 990333.

It is an arithmetic number, because the mean of its divisors is an integer number (32786485137).

Almost surely, 2^131144031233 is an apocalyptic number.

It is an amenable number.

131144031233 is a deficient number, since it is larger than the sum of its proper divisors (1909315).

131144031233 is an equidigital number, since it uses as much as digits as its factorization.

131144031233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909314.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 131144031233 its reverse (332130441131), we get a palindrome (463274472364).

The spelling of 131144031233 in words is "one hundred thirty-one billion, one hundred forty-four million, thirty-one thousand, two hundred thirty-three".