30231100091 has 2 divisors, whose sum is σ = 30231100092. Its totient is φ = 30231100090.

The previous prime is 30231100079. The next prime is 30231100099. The reversal of 30231100091 is 19000113203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30231100091 - 2⁶ = 30231100027 is a prime.

It is not a weakly prime, because it can be changed into another prime (30231100099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115550045 + 15115550046.

It is an arithmetic number, because the mean of its divisors is an integer number (15115550046).

Almost surely, 2^30231100091 is an apocalyptic number.

30231100091 is a deficient number, since it is larger than the sum of its proper divisors (1).

30231100091 is an equidigital number, since it uses as much as digits as its factorization.

30231100091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 30231100091 its reverse (19000113203), we get a palindrome (49231213294).

The spelling of 30231100091 in words is "thirty billion, two hundred thirty-one million, one hundred thousand, ninety-one".