30420253235129 has 2 divisors, whose sum is σ = 30420253235130. Its totient is φ = 30420253235128.

The previous prime is 30420253235101. The next prime is 30420253235201. The reversal of 30420253235129 is 92153235202403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15659020293904 + 14761232941225 = 3957148^2 + 3842035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30420253235129 is a prime.

It is not a weakly prime, because it can be changed into another prime (30420253238129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210126617564 + 15210126617565.

It is an arithmetic number, because the mean of its divisors is an integer number (15210126617565).

Almost surely, 2^{30420253235129} is an apocalyptic number.

It is an amenable number.

30420253235129 is a deficient number, since it is larger than the sum of its proper divisors (1).

30420253235129 is an equidigital number, since it uses as much as digits as its factorization.

30420253235129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 30420253235129 in words is "thirty trillion, four hundred twenty billion, two hundred fifty-three million, two hundred thirty-five thousand, one hundred twenty-nine".