1220322343 has 8 divisors (see below), whose sum is σ = 1237429440. Its totient is φ = 1203290880.

The previous prime is 1220322331. The next prime is 1220322353. The reversal of 1220322343 is 3432230221.

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 1220322343 - 2²¹ = 1218225191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220322353) 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, 13983 + ... + 51343.

It is an arithmetic number, because the mean of its divisors is an integer number (154678680).

Almost surely, 2^1220322343 is an apocalyptic number.

1220322343 is a deficient number, since it is larger than the sum of its proper divisors (17107097).

1220322343 is an equidigital number, since it uses as much as digits as its factorization.

1220322343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37817.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1220322343 is about 34933.1124150139. The cubic root of 1220322343 is about 1068.6238292605.

Adding to 1220322343 its reverse (3432230221), we get a palindrome (4652552564).

The spelling of 1220322343 in words is "one billion, two hundred twenty million, three hundred twenty-two thousand, three hundred forty-three".