213311311201020 has 96 divisors (see below), whose sum is σ = 598996799251200. Its totient is φ = 56718952003584.

The previous prime is 213311311201007. The next prime is 213311311201073. The reversal of 213311311201020 is 20102113113312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25580236 + ... + 32878124.

It is an arithmetic number, because the mean of its divisors is an integer number (6239549992200).

Almost surely, 2^{213311311201020} is an apocalyptic number.

213311311201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213311311201020 is an abundant number, since it is smaller than the sum of its proper divisors (385685488050180).

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

213311311201020 is a wasteful number, since it uses less digits than its factorization.

213311311201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299307 (or 7299305 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 213311311201020 its reverse (20102113113312), we get a palindrome (233413424314332).

The spelling of 213311311201020 in words is "two hundred thirteen trillion, three hundred eleven billion, three hundred eleven million, two hundred one thousand, twenty".