30287102210021 has 2 divisors, whose sum is σ = 30287102210022. Its totient is φ = 30287102210020.

The previous prime is 30287102209979. The next prime is 30287102210147. The reversal of 30287102210021 is 12001220178203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16103254048996 + 14183848161025 = 4012886^2 + 3766145^2 .

It is a cyclic number.

It is not a de Polignac number, because 30287102210021 - 2¹⁸ = 30287101947877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30287102210821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15143551105010 + 15143551105011.

It is an arithmetic number, because the mean of its divisors is an integer number (15143551105011).

Almost surely, 2^{30287102210021} is an apocalyptic number.

It is an amenable number.

30287102210021 is a deficient number, since it is larger than the sum of its proper divisors (1).

30287102210021 is an equidigital number, since it uses as much as digits as its factorization.

30287102210021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

Adding to 30287102210021 its reverse (12001220178203), we get a palindrome (42288322388224).

The spelling of 30287102210021 in words is "thirty trillion, two hundred eighty-seven billion, one hundred two million, two hundred ten thousand, twenty-one".