1303012100 has 72 divisors (see below), whose sum is σ = 3177504960. Its totient is φ = 460183680.

The previous prime is 1303012099. The next prime is 1303012121. The reversal of 1303012100 is 12103031.

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 23 ways as a sum of consecutive naturals, for example, 8111 + ... + 51689.

Almost surely, 2^1303012100 is an apocalyptic number.

1303012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1303012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1588752480).

1303012100 is an abundant number, since it is smaller than the sum of its proper divisors (1874492860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1303012100 is a wasteful number, since it uses less digits than its factorization.

1303012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43629 (or 43622 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1303012100 is about 36097.2588987031. The cubic root of 1303012100 is about 1092.2351519866.

Adding to 1303012100 its reverse (12103031), we get a palindrome (1315115131).

The spelling of 1303012100 in words is "one billion, three hundred three million, twelve thousand, one hundred".