1131235424243 has 2 divisors, whose sum is σ = 1131235424244. Its totient is φ = 1131235424242.

The previous prime is 1131235424237. The next prime is 1131235424257. The reversal of 1131235424243 is 3424245321311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131235424243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131235420243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565617712121 + 565617712122.

It is an arithmetic number, because the mean of its divisors is an integer number (565617712122).

Almost surely, 2^{1131235424243} is an apocalyptic number.

1131235424243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131235424243 is an equidigital number, since it uses as much as digits as its factorization.

1131235424243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 35.

The spelling of 1131235424243 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-five million, four hundred twenty-four thousand, two hundred forty-three".