30406123651 has 2 divisors, whose sum is σ = 30406123652. Its totient is φ = 30406123650.

The previous prime is 30406123613. The next prime is 30406123663. The reversal of 30406123651 is 15632160403.

It is a strong prime.

It is an emirp because it is prime and its reverse (15632160403) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30406123651 is a prime.

It is not a weakly prime, because it can be changed into another prime (30406123051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15203061825 + 15203061826.

It is an arithmetic number, because the mean of its divisors is an integer number (15203061826).

Almost surely, 2^30406123651 is an apocalyptic number.

30406123651 is a deficient number, since it is larger than the sum of its proper divisors (1).

30406123651 is an equidigital number, since it uses as much as digits as its factorization.

30406123651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 30406123651 in words is "thirty billion, four hundred six million, one hundred twenty-three thousand, six hundred fifty-one".