30012123020101 has 4 divisors (see below), whose sum is σ = 30120470034892. Its totient is φ = 29903776005312.

The previous prime is 30012123020083. The next prime is 30012123020107. The reversal of 30012123020101 is 10102032121003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8463968304100 + 21548154716001 = 2909290^2 + 4641999^2 .

It is a cyclic number.

It is not a de Polignac number, because 30012123020101 - 2⁷ = 30012123019973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012123020107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54173506980 + ... + 54173507533.

It is an arithmetic number, because the mean of its divisors is an integer number (7530117508723).

Almost surely, 2^{30012123020101} is an apocalyptic number.

It is an amenable number.

30012123020101 is a deficient number, since it is larger than the sum of its proper divisors (108347014791).

30012123020101 is a wasteful number, since it uses less digits than its factorization.

30012123020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108347014790.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30012123020101 its reverse (10102032121003), we get a palindrome (40114155141104).

The spelling of 30012123020101 in words is "thirty trillion, twelve billion, one hundred twenty-three million, twenty thousand, one hundred one".