30321202123 has 2 divisors, whose sum is σ = 30321202124. Its totient is φ = 30321202122.

The previous prime is 30321202103. The next prime is 30321202129. The reversal of 30321202123 is 32120212303.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30321202123 - 2⁹ = 30321201611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30321202123.

It is not a weakly prime, because it can be changed into another prime (30321202129) 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 as a sum of consecutive naturals, namely, 15160601061 + 15160601062.

It is an arithmetic number, because the mean of its divisors is an integer number (15160601062).

Almost surely, 2^30321202123 is an apocalyptic number.

30321202123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30321202123 is an equidigital number, since it uses as much as digits as its factorization.

30321202123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30321202123 its reverse (32120212303), we get a palindrome (62441414426).

The spelling of 30321202123 in words is "thirty billion, three hundred twenty-one million, two hundred two thousand, one hundred twenty-three".