1203120343 has 8 divisors (see below), whose sum is σ = 1207109520. Its totient is φ = 1199138880.

The previous prime is 1203120341. The next prime is 1203120367. The reversal of 1203120343 is 3430213021.

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 1203120343 - 2¹ = 1203120341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1203120343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203120341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497808 + ... + 500218.

It is an arithmetic number, because the mean of its divisors is an integer number (150888690).

Almost surely, 2^1203120343 is an apocalyptic number.

1203120343 is a deficient number, since it is larger than the sum of its proper divisors (3989177).

1203120343 is an equidigital number, since it uses as much as digits as its factorization.

1203120343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1203120343 is about 34686.0251830618. The cubic root of 1203120343 is about 1063.5788439915.

Adding to 1203120343 its reverse (3430213021), we get a palindrome (4633333364).

The spelling of 1203120343 in words is "one billion, two hundred three million, one hundred twenty thousand, three hundred forty-three".