30210121247 has 2 divisors, whose sum is σ = 30210121248. Its totient is φ = 30210121246.

The previous prime is 30210121199. The next prime is 30210121261. The reversal of 30210121247 is 74212101203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30210121247 - 2²⁰ = 30209072671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30210121267) 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, 15105060623 + 15105060624.

It is an arithmetic number, because the mean of its divisors is an integer number (15105060624).

Almost surely, 2^30210121247 is an apocalyptic number.

30210121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

30210121247 is an equidigital number, since it uses as much as digits as its factorization.

30210121247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The spelling of 30210121247 in words is "thirty billion, two hundred ten million, one hundred twenty-one thousand, two hundred forty-seven".