1220003343 has 32 divisors (see below), whose sum is σ = 1983199680. Its totient is φ = 736594560.

The previous prime is 1220003311. The next prime is 1220003359. The reversal of 1220003343 is 3433000221.

It is not a de Polignac number, because 1220003343 - 2⁵ = 1220003311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220003363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14188 + ... + 51393.

It is an arithmetic number, because the mean of its divisors is an integer number (61974990).

Almost surely, 2^1220003343 is an apocalyptic number.

1220003343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1220003343 is a deficient number, since it is larger than the sum of its proper divisors (763196337).

1220003343 is a wasteful number, since it uses less digits than its factorization.

1220003343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65656 (or 65650 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1220003343 is about 34928.5462480190. The cubic root of 1220003343 is about 1068.5307061302.

Adding to 1220003343 its reverse (3433000221), we get a palindrome (4653003564).

The spelling of 1220003343 in words is "one billion, two hundred twenty million, three thousand, three hundred forty-three".