1123140013533 has 20 divisors (see below), whose sum is σ = 1677807225820. Its totient is φ = 748746545472.

The previous prime is 1123140013519. The next prime is 1123140013549. The reversal of 1123140013533 is 3353100413211.

1123140013533 is a `hidden beast` number, since 1 + 123 + 1 + 4 + 0 + 0 + 1 + 3 + 533 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 412622515449 + 710517498084 = 642357^2 + 842922^2 .

It is not a de Polignac number, because 1123140013533 - 2⁴ = 1123140013517 is a prime.

It is a super-2 number, since 2×1123140013533² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123140013497 and 1123140013506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123140013573) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6699903 + ... + 6865491.

It is an arithmetic number, because the mean of its divisors is an integer number (83890361291).

Almost surely, 2^{1123140013533} is an apocalyptic number.

It is an amenable number.

1123140013533 is a deficient number, since it is larger than the sum of its proper divisors (554667212287).

1123140013533 is an equidigital number, since it uses as much as digits as its factorization.

1123140013533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249338 (or 249329 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 1123140013533 its reverse (3353100413211), we get a palindrome (4476240426744).

The spelling of 1123140013533 in words is "one trillion, one hundred twenty-three billion, one hundred forty million, thirteen thousand, five hundred thirty-three".