30102120102 has 16 divisors (see below), whose sum is σ = 60209800560. Its totient is φ = 10033113312.

The previous prime is 30102120077. The next prime is 30102120107. The reversal of 30102120102 is 20102120103.

It is a super-2 number, since 2×30102120102² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102120107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159577 + ... + 292692.

It is an arithmetic number, because the mean of its divisors is an integer number (3763112535).

Almost surely, 2^30102120102 is an apocalyptic number.

30102120102 is an abundant number, since it is smaller than the sum of its proper divisors (30107680458).

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

30102120102 is a wasteful number, since it uses less digits than its factorization.

30102120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463367.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30102120102 its reverse (20102120103), we get a palindrome (50204240205).

Subtracting from 30102120102 its reverse (20102120103), we obtain a palindrome (9999999999).

It can be divided in two parts, 301021 and 20102, that added together give a palindrome (321123).

The spelling of 30102120102 in words is "thirty billion, one hundred two million, one hundred twenty thousand, one hundred two".