30102020102 has 16 divisors (see below), whose sum is σ = 56294687232. Its totient is φ = 11728059720.

The previous prime is 30102020087. The next prime is 30102020149. The reversal of 30102020102 is 20102020103.

It is a happy number.

It is a super-2 number, since 2×30102020102² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97733678 + ... + 97733985.

It is an arithmetic number, because the mean of its divisors is an integer number (3518417952).

Almost surely, 2^30102020102 is an apocalyptic number.

30102020102 is a deficient number, since it is larger than the sum of its proper divisors (26192667130).

30102020102 is a wasteful number, since it uses less digits than its factorization.

30102020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195467683.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 30102020102 its reverse (20102020103), we get a palindrome (50204040205).

Subtracting from 30102020102 its reverse (20102020103), we obtain a palindrome (9999999999).

The spelling of 30102020102 in words is "thirty billion, one hundred two million, twenty thousand, one hundred two".