1303121030 has 16 divisors (see below), whose sum is σ = 2347592544. Its totient is φ = 520809600.

The previous prime is 1303121021. The next prime is 1303121047. The reversal of 1303121030 is 301213031.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1303120996 and 1303121014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42242 + ... + 66261.

It is an arithmetic number, because the mean of its divisors is an integer number (146724534).

Almost surely, 2^1303121030 is an apocalyptic number.

1303121030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1303121030 is a deficient number, since it is larger than the sum of its proper divisors (1044471514).

1303121030 is a wasteful number, since it uses less digits than its factorization.

1303121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109711.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1303121030 is about 36098.7677074994. The cubic root of 1303121030 is about 1092.2655875853.

Adding to 1303121030 its reverse (301213031), we get a palindrome (1604334061).

The spelling of 1303121030 in words is "one billion, three hundred three million, one hundred twenty-one thousand, thirty".