20130304121947 has 2 divisors, whose sum is σ = 20130304121948. Its totient is φ = 20130304121946.

The previous prime is 20130304121929. The next prime is 20130304122001. The reversal of 20130304121947 is 74912140303102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20130304121947 - 2³⁹ = 19580548308059 is a prime.

It is not a weakly prime, because it can be changed into another prime (20130304121927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065152060973 + 10065152060974.

It is an arithmetic number, because the mean of its divisors is an integer number (10065152060974).

Almost surely, 2^{20130304121947} is an apocalyptic number.

20130304121947 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130304121947 is an equidigital number, since it uses as much as digits as its factorization.

20130304121947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 20130304121947 in words is "twenty trillion, one hundred thirty billion, three hundred four million, one hundred twenty-one thousand, nine hundred forty-seven".