1220352343 has 8 divisors (see below), whose sum is σ = 1408229888. Its totient is φ = 1035860184.

The previous prime is 1220352313. The next prime is 1220352347. The reversal of 1220352343 is 3432530221.

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 1220352343 - 2⁹ = 1220351831 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 (1220352347) 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, 845571 + ... + 847012.

It is an arithmetic number, because the mean of its divisors is an integer number (176028736).

Almost surely, 2^1220352343 is an apocalyptic number.

1220352343 is a deficient number, since it is larger than the sum of its proper divisors (187877545).

1220352343 is a wasteful number, since it uses less digits than its factorization.

1220352343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692693.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1220352343 is about 34933.5418044034. The cubic root of 1220352343 is about 1068.6325860867.

Adding to 1220352343 its reverse (3432530221), we get a palindrome (4652882564).

It can be divided in two parts, 12203 and 52343, that added together give a palindrome (64546).

The spelling of 1220352343 in words is "one billion, two hundred twenty million, three hundred fifty-two thousand, three hundred forty-three".