30202101 has 12 divisors (see below), whose sum is σ = 44804812. Its totient is φ = 19590336.

The previous prime is 30202099. The next prime is 30202157. The reversal of 30202101 is 10120203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27815076 + 2387025 = 5274^2 + 1545^2 .

It is not a de Polignac number, because 30202101 - 2¹ = 30202099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30207101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45016 + ... + 45681.

Almost surely, 2^30202101 is an apocalyptic number.

It is an amenable number.

30202101 is a deficient number, since it is larger than the sum of its proper divisors (14602711).

30202101 is a wasteful number, since it uses less digits than its factorization.

30202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90740 (or 90737 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 30202101 is about 5495.6438203362. The cubic root of 30202101 is about 311.4194393637.

Adding to 30202101 its reverse (10120203), we get a palindrome (40322304).

It can be divided in two parts, 30202 and 101, that added together give a palindrome (30303).

The spelling of 30202101 in words is "thirty million, two hundred two thousand, one hundred one".