30102121613 has 2 divisors, whose sum is σ = 30102121614. Its totient is φ = 30102121612.

The previous prime is 30102121601. The next prime is 30102121633. The reversal of 30102121613 is 31612120103.

It is an a-pointer prime, because the next prime (30102121633) can be obtained adding 30102121613 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24324145444 + 5777976169 = 155962^2 + 76013^2 .

It is a cyclic number.

It is not a de Polignac number, because 30102121613 - 2¹² = 30102117517 is a prime.

It is a super-2 number, since 2×30102121613² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30102121633) 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 as a sum of consecutive naturals, namely, 15051060806 + 15051060807.

It is an arithmetic number, because the mean of its divisors is an integer number (15051060807).

Almost surely, 2^30102121613 is an apocalyptic number.

It is an amenable number.

30102121613 is a deficient number, since it is larger than the sum of its proper divisors (1).

30102121613 is an equidigital number, since it uses as much as digits as its factorization.

30102121613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 30102121613 its reverse (31612120103), we get a palindrome (61714241716).

The spelling of 30102121613 in words is "thirty billion, one hundred two million, one hundred twenty-one thousand, six hundred thirteen".