30121230053 has 2 divisors, whose sum is σ = 30121230054. Its totient is φ = 30121230052.

The previous prime is 30121229993. The next prime is 30121230059. The reversal of 30121230053 is 35003212103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28771622884 + 1349607169 = 169622^2 + 36737^2 .

It is a cyclic number.

It is not a de Polignac number, because 30121230053 - 2²⁴ = 30104452837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30121230059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060615026 + 15060615027.

It is an arithmetic number, because the mean of its divisors is an integer number (15060615027).

Almost surely, 2^30121230053 is an apocalyptic number.

It is an amenable number.

30121230053 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121230053 is an equidigital number, since it uses as much as digits as its factorization.

30121230053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 30121230053 its reverse (35003212103), we get a palindrome (65124442156).

The spelling of 30121230053 in words is "thirty billion, one hundred twenty-one million, two hundred thirty thousand, fifty-three".