1303296121 has 4 divisors (see below), whose sum is σ = 1306988532. Its totient is φ = 1299603712.

The previous prime is 1303296091. The next prime is 1303296133. The reversal of 1303296121 is 1216923031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163558521 + 1139737600 = 12789^2 + 33760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303296121 - 2¹¹ = 1303294073 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 1303296121.

It is not an unprimeable number, because it can be changed into a prime (1303296191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845676 + ... + 1846381.

It is an arithmetic number, because the mean of its divisors is an integer number (326747133).

Almost surely, 2^1303296121 is an apocalyptic number.

It is an amenable number.

1303296121 is a deficient number, since it is larger than the sum of its proper divisors (3692411).

1303296121 is an equidigital number, since it uses as much as digits as its factorization.

1303296121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692410.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1303296121 is about 36101.1927919286. The cubic root of 1303296121 is about 1092.3145053514.

The spelling of 1303296121 in words is "one billion, three hundred three million, two hundred ninety-six thousand, one hundred twenty-one".