30112123221101 has 2 divisors, whose sum is σ = 30112123221102. Its totient is φ = 30112123221100.

The previous prime is 30112123221097. The next prime is 30112123221247. The reversal of 30112123221101 is 10112232121103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26773277004100 + 3338846217001 = 5174290^2 + 1827251^2 .

It is a cyclic number.

It is not a de Polignac number, because 30112123221101 - 2² = 30112123221097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30112123221701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056061610550 + 15056061610551.

It is an arithmetic number, because the mean of its divisors is an integer number (15056061610551).

Almost surely, 2^{30112123221101} is an apocalyptic number.

It is an amenable number.

30112123221101 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112123221101 is an equidigital number, since it uses as much as digits as its factorization.

30112123221101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 30112123221101 its reverse (10112232121103), we get a palindrome (40224355342204).

The spelling of 30112123221101 in words is "thirty trillion, one hundred twelve billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred one".