1223054623 has 4 divisors (see below), whose sum is σ = 1397776720. Its totient is φ = 1048332528.

The previous prime is 1223054617. The next prime is 1223054653. The reversal of 1223054623 is 3264503221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223054623 - 2¹³ = 1223046431 is a prime.

It is a super-2 number, since 2×1223054623² = 2991725221683344258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223054591 and 1223054600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223054653) 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, 87361038 + ... + 87361051.

It is an arithmetic number, because the mean of its divisors is an integer number (349444180).

Almost surely, 2^1223054623 is an apocalyptic number.

1223054623 is a deficient number, since it is larger than the sum of its proper divisors (174722097).

1223054623 is an equidigital number, since it uses as much as digits as its factorization.

1223054623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174722096.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 1223054623 is about 34972.1978577269. The cubic root of 1223054623 is about 1069.4207780142.

Adding to 1223054623 its reverse (3264503221), we get a palindrome (4487557844).

The spelling of 1223054623 in words is "one billion, two hundred twenty-three million, fifty-four thousand, six hundred twenty-three".