1303123109 has 8 divisors (see below), whose sum is σ = 1316780832. Its totient is φ = 1289480400.

The previous prime is 1303123097. The next prime is 1303123111. The reversal of 1303123109 is 9013213031.

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 1303123109 - 2⁴ = 1303123093 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 (1303123139) 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, 280802 + ... + 285404.

It is an arithmetic number, because the mean of its divisors is an integer number (164597604).

Almost surely, 2^1303123109 is an apocalyptic number.

It is an amenable number.

1303123109 is a deficient number, since it is larger than the sum of its proper divisors (13657723).

1303123109 is a wasteful number, since it uses less digits than its factorization.

1303123109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7507.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 1303123109 is about 36098.7965034847. The cubic root of 1303123109 is about 1092.2661684520.

The spelling of 1303123109 in words is "one billion, three hundred three million, one hundred twenty-three thousand, one hundred nine".