1123535352491 has 2 divisors, whose sum is σ = 1123535352492. Its totient is φ = 1123535352490.

The previous prime is 1123535352487. The next prime is 1123535352503. The reversal of 1123535352491 is 1942535353211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123535352491 - 2² = 1123535352487 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123535352421) 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, 561767676245 + 561767676246.

It is an arithmetic number, because the mean of its divisors is an integer number (561767676246).

Almost surely, 2^{1123535352491} is an apocalyptic number.

1123535352491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123535352491 is an equidigital number, since it uses as much as digits as its factorization.

1123535352491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486000, while the sum is 44.

The spelling of 1123535352491 in words is "one trillion, one hundred twenty-three billion, five hundred thirty-five million, three hundred fifty-two thousand, four hundred ninety-one".