30021356051 has 2 divisors, whose sum is σ = 30021356052. Its totient is φ = 30021356050.

The previous prime is 30021355999. The next prime is 30021356063. The reversal of 30021356051 is 15065312003.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30021356051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30021356051.

It is not a weakly prime, because it can be changed into another prime (30021356551) 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, 15010678025 + 15010678026.

It is an arithmetic number, because the mean of its divisors is an integer number (15010678026).

Almost surely, 2^30021356051 is an apocalyptic number.

30021356051 is a deficient number, since it is larger than the sum of its proper divisors (1).

30021356051 is an equidigital number, since it uses as much as digits as its factorization.

30021356051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 30021356051 its reverse (15065312003), we get a palindrome (45086668054).

The spelling of 30021356051 in words is "thirty billion, twenty-one million, three hundred fifty-six thousand, fifty-one".