2120100030 has 48 divisors (see below), whose sum is σ = 5514687360. Its totient is φ = 565111104.

The previous prime is 2120100029. The next prime is 2120100053. The reversal of 2120100030 is 300010212.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2120099985 and 2120100021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298804 + ... + 305816.

It is an arithmetic number, because the mean of its divisors is an integer number (114889320).

Almost surely, 2^2120100030 is an apocalyptic number.

2120100030 is an abundant number, since it is smaller than the sum of its proper divisors (3394587330).

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

2120100030 is a wasteful number, since it uses less digits than its factorization.

2120100030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10385 (or 10382 counting only the distinct ones).

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

The square root of 2120100030 is about 46044.5439764583. The cubic root of 2120100030 is about 1284.6518620653.

Adding to 2120100030 its reverse (300010212), we get a palindrome (2420110242).

The spelling of 2120100030 in words is "two billion, one hundred twenty million, one hundred thousand, thirty".