30046431997 has 2 divisors, whose sum is σ = 30046431998. Its totient is φ = 30046431996.

The previous prime is 30046431991. The next prime is 30046432063. The reversal of 30046431997 is 79913464003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26690083641 + 3356348356 = 163371^2 + 57934^2 .

It is an emirp because it is prime and its reverse (79913464003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30046431997 - 2¹⁹ = 30045907709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30046431991) 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, 15023215998 + 15023215999.

It is an arithmetic number, because the mean of its divisors is an integer number (15023215999).

Almost surely, 2^30046431997 is an apocalyptic number.

It is an amenable number.

30046431997 is a deficient number, since it is larger than the sum of its proper divisors (1).

30046431997 is an equidigital number, since it uses as much as digits as its factorization.

30046431997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 30046431997 in words is "thirty billion, forty-six million, four hundred thirty-one thousand, nine hundred ninety-seven".