131233142240243 has 16 divisors (see below), whose sum is σ = 135436505512896. Its totient is φ = 127077813480960.

The previous prime is 131233142240227. The next prime is 131233142240281. The reversal of 131233142240243 is 342042241332131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131233142240243 - 2⁴ = 131233142240227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131233142440243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33964130 + ... + 37630152.

It is an arithmetic number, because the mean of its divisors is an integer number (8464781594556).

Almost surely, 2^{131233142240243} is an apocalyptic number.

131233142240243 is a deficient number, since it is larger than the sum of its proper divisors (4203363272653).

131233142240243 is a wasteful number, since it uses less digits than its factorization.

131233142240243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672574.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 131233142240243 its reverse (342042241332131), we get a palindrome (473275383572374).

The spelling of 131233142240243 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, one hundred forty-two million, two hundred forty thousand, two hundred forty-three".