30121112001 has 4 divisors (see below), whose sum is σ = 40161482672. Its totient is φ = 20080741332.

The previous prime is 30121111991. The next prime is 30121112071. The reversal of 30121112001 is 10021112103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30121112001 - 2⁷ = 30121111873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30121112071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5020185331 + ... + 5020185336.

It is an arithmetic number, because the mean of its divisors is an integer number (10040370668).

Almost surely, 2^30121112001 is an apocalyptic number.

It is an amenable number.

30121112001 is a deficient number, since it is larger than the sum of its proper divisors (10040370671).

30121112001 is a wasteful number, since it uses less digits than its factorization.

30121112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10040370670.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 30121112001 its reverse (10021112103), we get a palindrome (40142224104).

The spelling of 30121112001 in words is "thirty billion, one hundred twenty-one million, one hundred twelve thousand, one".