1321102030 has 16 divisors (see below), whose sum is σ = 2380018464. Its totient is φ = 527988640.

The previous prime is 1321102019. The next prime is 1321102031. The reversal of 1321102030 is 302011231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321102030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321102031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44122 + ... + 67741.

It is an arithmetic number, because the mean of its divisors is an integer number (148751154).

Almost surely, 2^1321102030 is an apocalyptic number.

1321102030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321102030 is a deficient number, since it is larger than the sum of its proper divisors (1058916434).

1321102030 is a wasteful number, since it uses less digits than its factorization.

1321102030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113051.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1321102030 is about 36346.9672737630. The cubic root of 1321102030 is about 1097.2664993774.

Adding to 1321102030 its reverse (302011231), we get a palindrome (1623113261).

The spelling of 1321102030 in words is "one billion, three hundred twenty-one million, one hundred two thousand, thirty".