1123634053 has 4 divisors (see below), whose sum is σ = 1123704940. Its totient is φ = 1123563168.

The previous prime is 1123634051. The next prime is 1123634059. The reversal of 1123634053 is 3504363211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3504363211 = 19 ⋅184440169.

It can be written as a sum of positive squares in 2 ways, for example, as 538332804 + 585301249 = 23202^2 + 24193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123634053 - 2¹ = 1123634051 is a prime.

It is a super-2 number, since 2×1123634053² = 2525106970122413618, 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 (1123634051) 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, 451 + ... + 47407.

It is an arithmetic number, because the mean of its divisors is an integer number (280926235).

Almost surely, 2^1123634053 is an apocalyptic number.

It is an amenable number.

1123634053 is a deficient number, since it is larger than the sum of its proper divisors (70887).

1123634053 is an equidigital number, since it uses as much as digits as its factorization.

1123634053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70886.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1123634053 is about 33520.6511422436. The cubic root of 1123634053 is about 1039.6208100485.

Adding to 1123634053 its reverse (3504363211), we get a palindrome (4627997264).

The spelling of 1123634053 in words is "one billion, one hundred twenty-three million, six hundred thirty-four thousand, fifty-three".