1223065053919 has 4 divisors (see below), whose sum is σ = 1231164822640. Its totient is φ = 1214965285200.

The previous prime is 1223065053901. The next prime is 1223065053923. The reversal of 1223065053919 is 9193505603221.

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 1223065053919 - 2¹⁵ = 1223065021151 is a prime.

It is a super-2 number, since 2×1223065053919² (a number of 25 digits) 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 (1223065053929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4049884134 + ... + 4049884435.

It is an arithmetic number, because the mean of its divisors is an integer number (307791205660).

Almost surely, 2^{1223065053919} is an apocalyptic number.

1223065053919 is a deficient number, since it is larger than the sum of its proper divisors (8099768721).

1223065053919 is an equidigital number, since it uses as much as digits as its factorization.

1223065053919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8099768720.

The product of its (nonzero) digits is 437400, while the sum is 46.

The spelling of 1223065053919 in words is "one trillion, two hundred twenty-three billion, sixty-five million, fifty-three thousand, nine hundred nineteen".