30122039887 has 2 divisors, whose sum is σ = 30122039888. Its totient is φ = 30122039886.

The previous prime is 30122039881. The next prime is 30122039963. The reversal of 30122039887 is 78893022103.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30122039887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30122039881) 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, 15061019943 + 15061019944.

It is an arithmetic number, because the mean of its divisors is an integer number (15061019944).

Almost surely, 2^30122039887 is an apocalyptic number.

30122039887 is a deficient number, since it is larger than the sum of its proper divisors (1).

30122039887 is an equidigital number, since it uses as much as digits as its factorization.

30122039887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 30122039887 in words is "thirty billion, one hundred twenty-two million, thirty-nine thousand, eight hundred eighty-seven".