1121432323523 has 2 divisors, whose sum is σ = 1121432323524. Its totient is φ = 1121432323522.

The previous prime is 1121432323519. The next prime is 1121432323537. The reversal of 1121432323523 is 3253232341211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121432323523 - 2² = 1121432323519 is a prime.

It is a super-2 number, since 2×1121432323523² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121432323523.

It is not a weakly prime, because it can be changed into another prime (1121632323523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560716161761 + 560716161762.

It is an arithmetic number, because the mean of its divisors is an integer number (560716161762).

Almost surely, 2^{1121432323523} is an apocalyptic number.

1121432323523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121432323523 is an equidigital number, since it uses as much as digits as its factorization.

1121432323523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

Adding to 1121432323523 its reverse (3253232341211), we get a palindrome (4374664664734).

The spelling of 1121432323523 in words is "one trillion, one hundred twenty-one billion, four hundred thirty-two million, three hundred twenty-three thousand, five hundred twenty-three".