1123204134 has 32 divisors (see below), whose sum is σ = 2452361184. Its totient is φ = 340865280.

The previous prime is 1123204123. The next prime is 1123204141. The reversal of 1123204134 is 4314023211.

It is a self number, because there is not a number n which added to its sum of digits gives 1123204134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92937 + ... + 104324.

It is an arithmetic number, because the mean of its divisors is an integer number (76636287).

Almost surely, 2^1123204134 is an apocalyptic number.

1123204134 is an abundant number, since it is smaller than the sum of its proper divisors (1329157050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123204134 is a wasteful number, since it uses less digits than its factorization.

1123204134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197352.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1123204134 is about 33514.2377803822. The cubic root of 1123204134 is about 1039.4882017040.

Adding to 1123204134 its reverse (4314023211), we get a palindrome (5437227345).

It can be divided in two parts, 112 and 3204134, that added together give a triangular number (3204246 = T₂₅₃₁).

The spelling of 1123204134 in words is "one billion, one hundred twenty-three million, two hundred four thousand, one hundred thirty-four".