1123028205826 has 4 divisors (see below), whose sum is σ = 1684542308742. Its totient is φ = 561514102912.

The previous prime is 1123028205823. The next prime is 1123028205833. The reversal of 1123028205826 is 6285028203211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 908104173025 + 214924032801 = 952945^2 + 463599^2 .

It is a super-2 number, since 2×1123028205826² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1123028205821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280757051455 + ... + 280757051458.

Almost surely, 2^{1123028205826} is an apocalyptic number.

1123028205826 is a deficient number, since it is larger than the sum of its proper divisors (561514102916).

1123028205826 is an equidigital number, since it uses as much as digits as its factorization.

1123028205826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561514102915.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 1123028205826 in words is "one trillion, one hundred twenty-three billion, twenty-eight million, two hundred five thousand, eight hundred twenty-six".