1320103043 has 8 divisors (see below), whose sum is σ = 1510736640. Its totient is φ = 1129981320.

The previous prime is 1320103021. The next prime is 1320103049. The reversal of 1320103043 is 3403010231.

It is a happy number.

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 1320103043 - 2¹⁴ = 1320086659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320103049) 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, 122423 + ... + 132768.

It is an arithmetic number, because the mean of its divisors is an integer number (188842080).

Almost surely, 2^1320103043 is an apocalyptic number.

1320103043 is a deficient number, since it is larger than the sum of its proper divisors (190633597).

1320103043 is an equidigital number, since it uses as much as digits as its factorization.

1320103043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255937.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1320103043 is about 36333.2223041117. Note that the first 3 decimals coincide. The cubic root of 1320103043 is about 1096.9898537298.

Adding to 1320103043 its reverse (3403010231), we get a palindrome (4723113274).

The spelling of 1320103043 in words is "one billion, three hundred twenty million, one hundred three thousand, forty-three".