1121432323537 has 2 divisors, whose sum is σ = 1121432323538. Its totient is φ = 1121432323536.

The previous prime is 1121432323523. The next prime is 1121432323579. The reversal of 1121432323537 is 7353232341211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1059614949376 + 61817374161 = 1029376^2 + 248631^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121432323537 - 2³¹ = 1119284839889 is a prime.

It is a super-2 number, since 2×1121432323537² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121432323496 and 1121432323505.

It is not a weakly prime, because it can be changed into another prime (1121432323237) 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, 560716161768 + 560716161769.

It is an arithmetic number, because the mean of its divisors is an integer number (560716161769).

Almost surely, 2^{1121432323537} is an apocalyptic number.

It is an amenable number.

1121432323537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121432323537 is an equidigital number, since it uses as much as digits as its factorization.

1121432323537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

Adding to 1121432323537 its reverse (7353232341211), we get a palindrome (8474664664748).

The spelling of 1121432323537 in words is "one trillion, one hundred twenty-one billion, four hundred thirty-two million, three hundred twenty-three thousand, five hundred thirty-seven".