30321321102 has 12 divisors (see below), whose sum is σ = 65696195760. Its totient is φ = 10107107028.

The previous prime is 30321321059. The next prime is 30321321109. The reversal of 30321321102 is 20112312303.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1684517839 = 30321321102 / (3 + 0 + 3 + 2 + 1 + 3 + 2 + 1 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321321109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 842258902 + ... + 842258937.

It is an arithmetic number, because the mean of its divisors is an integer number (5474682980).

Almost surely, 2^30321321102 is an apocalyptic number.

30321321102 is an abundant number, since it is smaller than the sum of its proper divisors (35374874658).

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

30321321102 is a wasteful number, since it uses less digits than its factorization.

30321321102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684517847 (or 1684517844 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30321321102 its reverse (20112312303), we get a palindrome (50433633405).

The spelling of 30321321102 in words is "thirty billion, three hundred twenty-one million, three hundred twenty-one thousand, one hundred two".