212031103030320 has 80 divisors (see below), whose sum is σ = 751195907884800. Its totient is φ = 48464252120832.

The previous prime is 212031103030267. The next prime is 212031103030343. The reversal of 212031103030320 is 23030301130212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 63104493270 + ... + 63104496629.

It is an arithmetic number, because the mean of its divisors is an integer number (9389948848560).

Almost surely, 2^{212031103030320} is an apocalyptic number.

212031103030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212031103030320 is an abundant number, since it is smaller than the sum of its proper divisors (539164804854480).

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

212031103030320 is a wasteful number, since it uses less digits than its factorization.

212031103030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126208989922 (or 126208989916 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 212031103030320 its reverse (23030301130212), we get a palindrome (235061404160532).

The spelling of 212031103030320 in words is "two hundred twelve trillion, thirty-one billion, one hundred three million, thirty thousand, three hundred twenty".