30030250091 has 2 divisors, whose sum is σ = 30030250092. Its totient is φ = 30030250090.

The previous prime is 30030250057. The next prime is 30030250093. The reversal of 30030250091 is 19005203003.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30030250091 is a prime.

Together with 30030250093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30030250093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015125045 + 15015125046.

It is an arithmetic number, because the mean of its divisors is an integer number (15015125046).

Almost surely, 2^30030250091 is an apocalyptic number.

30030250091 is a deficient number, since it is larger than the sum of its proper divisors (1).

30030250091 is an equidigital number, since it uses as much as digits as its factorization.

30030250091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 30030250091 its reverse (19005203003), we get a palindrome (49035453094).

The spelling of 30030250091 in words is "thirty billion, thirty million, two hundred fifty thousand, ninety-one".