1223020319 has 8 divisors (see below), whose sum is σ = 1268609232. Its totient is φ = 1178210880.

The previous prime is 1223020303. The next prime is 1223020361. The reversal of 1223020319 is 9130203221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223020319 - 2⁴ = 1223020303 is a prime.

It is a super-2 number, since 2×1223020319² = 2991557401373723522, 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 = 1223020294 and 1223020303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223025319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191672 + ... + 197949.

It is an arithmetic number, because the mean of its divisors is an integer number (158576154).

Almost surely, 2^1223020319 is an apocalyptic number.

1223020319 is a deficient number, since it is larger than the sum of its proper divisors (45588913).

1223020319 is an equidigital number, since it uses as much as digits as its factorization.

1223020319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389737.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1223020319 is about 34971.7074075602. The cubic root of 1223020319 is about 1069.4107796182.

The spelling of 1223020319 in words is "one billion, two hundred twenty-three million, twenty thousand, three hundred nineteen".