30102121207 has 2 divisors, whose sum is σ = 30102121208. Its totient is φ = 30102121206.

The previous prime is 30102121193. The next prime is 30102121229. The reversal of 30102121207 is 70212120103.

It is a weak prime.

It is an emirp because it is prime and its reverse (70212120103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30102121207 - 2¹⁹ = 30101596919 is a prime.

It is a super-2 number, since 2×30102121207² (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 (30102121237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15051060603 + 15051060604.

It is an arithmetic number, because the mean of its divisors is an integer number (15051060604).

Almost surely, 2^30102121207 is an apocalyptic number.

30102121207 is a deficient number, since it is larger than the sum of its proper divisors (1).

30102121207 is an equidigital number, since it uses as much as digits as its factorization.

30102121207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The spelling of 30102121207 in words is "thirty billion, one hundred two million, one hundred twenty-one thousand, two hundred seven".