30112001 has 4 divisors (see below), whose sum is σ = 30422532. Its totient is φ = 29801472.

The previous prime is 30111971. The next prime is 30112051. The reversal of 30112001 is 10021103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10021103 = 443 ⋅22621.

It can be written as a sum of positive squares in 2 ways, for example, as 22137025 + 7974976 = 4705^2 + 2824^2 .

It is a cyclic number.

It is not a de Polignac number, because 30112001 - 2¹⁸ = 29849857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30112001.

It is not an unprimeable number, because it can be changed into a prime (30112051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155120 + ... + 155313.

It is an arithmetic number, because the mean of its divisors is an integer number (7605633).

Almost surely, 2^30112001 is an apocalyptic number.

It is an amenable number.

30112001 is a deficient number, since it is larger than the sum of its proper divisors (310531).

30112001 is an equidigital number, since it uses as much as digits as its factorization.

30112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310530.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 30112001 is about 5487.4402958028. The cubic root of 30112001 is about 311.1094516588.

Adding to 30112001 its reverse (10021103), we get a palindrome (40133104).

The spelling of 30112001 in words is "thirty million, one hundred twelve thousand, one".