1321103330 has 16 divisors (see below), whose sum is σ = 2395346040. Its totient is φ = 524583552.

The previous prime is 1321103327. The next prime is 1321103341. The reversal of 1321103330 is 333011231.

It can be written as a sum of positive squares in 4 ways, for example, as 1277133169 + 43970161 = 35737^2 + 6631^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1321103299 and 1321103308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480785 + ... + 483524.

Almost surely, 2^1321103330 is an apocalyptic number.

1321103330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321103330 is a deficient number, since it is larger than the sum of its proper divisors (1074242710).

1321103330 is a wasteful number, since it uses less digits than its factorization.

1321103330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964453.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1321103330 is about 36346.9851569563. The cubic root of 1321103330 is about 1097.2668592906.

Adding to 1321103330 its reverse (333011231), we get a palindrome (1654114561).

The spelling of 1321103330 in words is "one billion, three hundred twenty-one million, one hundred three thousand, three hundred thirty".