1123204301 has 4 divisors (see below), whose sum is σ = 1153561212. Its totient is φ = 1092847392.

The previous prime is 1123204279. The next prime is 1123204319. The reversal of 1123204301 is 1034023211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1034023211 = 13 ⋅79540247.

It can be written as a sum of positive squares in 2 ways, for example, as 767844100 + 355360201 = 27710^2 + 18851^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1123204301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123204301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123204351) 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 in 3 ways as a sum of consecutive naturals, for example, 15178400 + ... + 15178473.

It is an arithmetic number, because the mean of its divisors is an integer number (288390303).

Almost surely, 2^1123204301 is an apocalyptic number.

It is an amenable number.

1123204301 is a deficient number, since it is larger than the sum of its proper divisors (30356911).

1123204301 is an equidigital number, since it uses as much as digits as its factorization.

1123204301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30356910.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1123204301 is about 33514.2402718606. The cubic root of 1123204301 is about 1039.4882532216.

Adding to 1123204301 its reverse (1034023211), we get a palindrome (2157227512).

The spelling of 1123204301 in words is "one billion, one hundred twenty-three million, two hundred four thousand, three hundred one".