30312097873 has 2 divisors, whose sum is σ = 30312097874. Its totient is φ = 30312097872.

The previous prime is 30312097861. The next prime is 30312097883. The reversal of 30312097873 is 37879021303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21606648064 + 8705449809 = 146992^2 + 93303^2 .

It is a cyclic number.

It is not a de Polignac number, because 30312097873 - 2²⁵ = 30278543441 is a prime.

It is a super-2 number, since 2×30312097873² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30312097883) 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, 15156048936 + 15156048937.

It is an arithmetic number, because the mean of its divisors is an integer number (15156048937).

Almost surely, 2^30312097873 is an apocalyptic number.

It is an amenable number.

30312097873 is a deficient number, since it is larger than the sum of its proper divisors (1).

30312097873 is an equidigital number, since it uses as much as digits as its factorization.

30312097873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 30312097873 in words is "thirty billion, three hundred twelve million, ninety-seven thousand, eight hundred seventy-three".