30102102 has 12 divisors (see below), whose sum is σ = 65221260. Its totient is φ = 10034028.

The previous prime is 30102091. The next prime is 30102131. The reversal of 30102102 is 20120103.

It is a happy number.

It is a super-2 number, since 2×30102102² = 1812273089636808, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 836152 + ... + 836187.

It is an arithmetic number, because the mean of its divisors is an integer number (5435105).

Almost surely, 2^30102102 is an apocalyptic number.

30102102 is an abundant number, since it is smaller than the sum of its proper divisors (35119158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30102102 is a wasteful number, since it uses less digits than its factorization.

30102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672347 (or 1672344 counting only the distinct ones).

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

The square root of 30102102 is about 5486.5382528512. The cubic root of 30102102 is about 311.0753566148.

Adding to 30102102 its reverse (20120103), we get a palindrome (50222205).

The spelling of 30102102 in words is "thirty million, one hundred two thousand, one hundred two".