30202112121091 has 2 divisors, whose sum is σ = 30202112121092. Its totient is φ = 30202112121090.

The previous prime is 30202112121073. The next prime is 30202112121133. The reversal of 30202112121091 is 19012121120203.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30202112121091 - 2⁵ = 30202112121059 is a prime.

It is not a weakly prime, because it can be changed into another prime (30202112121001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101056060545 + 15101056060546.

It is an arithmetic number, because the mean of its divisors is an integer number (15101056060546).

Almost surely, 2^{30202112121091} is an apocalyptic number.

30202112121091 is a deficient number, since it is larger than the sum of its proper divisors (1).

30202112121091 is an equidigital number, since it uses as much as digits as its factorization.

30202112121091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 30202112121091 its reverse (19012121120203), we get a palindrome (49214233241294).

The spelling of 30202112121091 in words is "thirty trillion, two hundred two billion, one hundred twelve million, one hundred twenty-one thousand, ninety-one".