30220123091 has 2 divisors, whose sum is σ = 30220123092. Its totient is φ = 30220123090.

The previous prime is 30220123019. The next prime is 30220123139. The reversal of 30220123091 is 19032102203.

Together with previous prime (30220123019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (19032102203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30220123091 - 2³⁰ = 29146381267 is a prime.

It is not a weakly prime, because it can be changed into another prime (30220123391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110061545 + 15110061546.

It is an arithmetic number, because the mean of its divisors is an integer number (15110061546).

Almost surely, 2^30220123091 is an apocalyptic number.

30220123091 is a deficient number, since it is larger than the sum of its proper divisors (1).

30220123091 is an equidigital number, since it uses as much as digits as its factorization.

30220123091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 30220123091 its reverse (19032102203), we get a palindrome (49252225294).

The spelling of 30220123091 in words is "thirty billion, two hundred twenty million, one hundred twenty-three thousand, ninety-one".