30205101 has 4 divisors (see below), whose sum is σ = 40273472. Its totient is φ = 20136732.

The previous prime is 30205081. The next prime is 30205103. The reversal of 30205101 is 10150203.

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 30205101 - 2¹¹ = 30203053 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 (30205103) 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, 5034181 + ... + 5034186.

It is an arithmetic number, because the mean of its divisors is an integer number (10068368).

Almost surely, 2^30205101 is an apocalyptic number.

It is an amenable number.

30205101 is a deficient number, since it is larger than the sum of its proper divisors (10068371).

30205101 is a wasteful number, since it uses less digits than its factorization.

30205101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068370.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 30205101 is about 5495.9167570115. The cubic root of 30205101 is about 311.4297502070.

Adding to 30205101 its reverse (10150203), we get a palindrome (40355304).

The spelling of 30205101 in words is "thirty million, two hundred five thousand, one hundred one".