30154425421 has 2 divisors, whose sum is σ = 30154425422. Its totient is φ = 30154425420.

The previous prime is 30154425289. The next prime is 30154425451. The reversal of 30154425421 is 12452445103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28895240196 + 1259185225 = 169986^2 + 35485^2 .

It is a cyclic number.

It is not a de Polignac number, because 30154425421 - 2¹¹ = 30154423373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30154425451) 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, 15077212710 + 15077212711.

It is an arithmetic number, because the mean of its divisors is an integer number (15077212711).

Almost surely, 2^30154425421 is an apocalyptic number.

It is an amenable number.

30154425421 is a deficient number, since it is larger than the sum of its proper divisors (1).

30154425421 is an equidigital number, since it uses as much as digits as its factorization.

30154425421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 30154425421 in words is "thirty billion, one hundred fifty-four million, four hundred twenty-five thousand, four hundred twenty-one".