211303030020 has 48 divisors (see below), whose sum is σ = 612050160960. Its totient is φ = 54404457856.

The previous prime is 211303030013. The next prime is 211303030079. The reversal of 211303030020 is 20030303112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60717522 + ... + 60721001.

It is an arithmetic number, because the mean of its divisors is an integer number (12751045020).

Almost surely, 2^211303030020 is an apocalyptic number.

211303030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211303030020 is an abundant number, since it is smaller than the sum of its proper divisors (400747130940).

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

211303030020 is a wasteful number, since it uses less digits than its factorization.

211303030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121438564 (or 121438562 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 211303030020 its reverse (20030303112), we get a palindrome (231333333132).

The spelling of 211303030020 in words is "two hundred eleven billion, three hundred three million, thirty thousand, twenty".