30195047231 has 2 divisors, whose sum is σ = 30195047232. Its totient is φ = 30195047230.

The previous prime is 30195047219. The next prime is 30195047251. The reversal of 30195047231 is 13274059103.

It is a weak prime.

It is an emirp because it is prime and its reverse (13274059103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30195047231 - 2¹⁰ = 30195046207 is a prime.

It is a super-2 number, since 2×30195047231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30195047191 and 30195047200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30195047251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15097523615 + 15097523616.

It is an arithmetic number, because the mean of its divisors is an integer number (15097523616).

Almost surely, 2^30195047231 is an apocalyptic number.

30195047231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30195047231 is an equidigital number, since it uses as much as digits as its factorization.

30195047231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 30195047231 in words is "thirty billion, one hundred ninety-five million, forty-seven thousand, two hundred thirty-one".