1123136053 has 4 divisors (see below), whose sum is σ = 1209531148. Its totient is φ = 1036740960.

The previous prime is 1123136051. The next prime is 1123136089. The reversal of 1123136053 is 3506313211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3506313211 = 67 ⋅52333033.

It can be written as a sum of positive squares in 2 ways, for example, as 163251729 + 959884324 = 12777^2 + 30982^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123136053 - 2¹ = 1123136051 is a prime.

It is a super-2 number, since 2×1123136053² = 2522869187096837618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123136051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43197528 + ... + 43197553.

It is an arithmetic number, because the mean of its divisors is an integer number (302382787).

Almost surely, 2^1123136053 is an apocalyptic number.

1123136053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1123136053 is a deficient number, since it is larger than the sum of its proper divisors (86395095).

1123136053 is an equidigital number, since it uses as much as digits as its factorization.

1123136053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86395094.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1123136053 is about 33513.2220623443. Note that the first 3 decimals coincide. The cubic root of 1123136053 is about 1039.4671990432.

Adding to 1123136053 its reverse (3506313211), we get a palindrome (4629449264).

The spelling of 1123136053 in words is "one billion, one hundred twenty-three million, one hundred thirty-six thousand, fifty-three".