1303321125 has 32 divisors (see below), whose sum is σ = 2176566912. Its totient is φ = 692592000.

The previous prime is 1303321121. The next prime is 1303321147. The reversal of 1303321125 is 5211233031.

It is not a de Polignac number, because 1303321125 - 2² = 1303321121 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303321121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99985 + ... + 112265.

It is an arithmetic number, because the mean of its divisors is an integer number (68017716).

Almost surely, 2^1303321125 is an apocalyptic number.

1303321125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1303321125 is a deficient number, since it is larger than the sum of its proper divisors (873245787).

1303321125 is a wasteful number, since it uses less digits than its factorization.

1303321125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12582 (or 12572 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1303321125 is about 36101.5390946148. The cubic root of 1303321125 is about 1092.3214907317.

Adding to 1303321125 its reverse (5211233031), we get a palindrome (6514554156).

The spelling of 1303321125 in words is "one billion, three hundred three million, three hundred twenty-one thousand, one hundred twenty-five".