1303123133 has 16 divisors (see below), whose sum is σ = 1427200320. Its totient is φ = 1182525696.

The previous prime is 1303123111. The next prime is 1303123139. The reversal of 1303123133 is 3313213031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303123133 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 537941 + ... + 540357.

It is an arithmetic number, because the mean of its divisors is an integer number (89200020).

Almost surely, 2^1303123133 is an apocalyptic number.

1303123133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1303123133 is a deficient number, since it is larger than the sum of its proper divisors (124077187).

1303123133 is a wasteful number, since it uses less digits than its factorization.

1303123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1303123133 is about 36098.7968359058. The cubic root of 1303123133 is about 1092.2661751575.

Adding to 1303123133 its reverse (3313213031), we get a palindrome (4616336164).

The spelling of 1303123133 in words is "one billion, three hundred three million, one hundred twenty-three thousand, one hundred thirty-three".