2102201311320 has 192 divisors, whose sum is σ = 7845536275200. Its totient is φ = 482802197760.

The previous prime is 2102201311297. The next prime is 2102201311387. The reversal of 2102201311320 is 231131022012.

2102201311320 is a `hidden beast` number, since 2 + 10 + 2 + 20 + 1 + 311 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2102201311293 and 2102201311302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13894732 + ... + 14045211.

It is an arithmetic number, because the mean of its divisors is an integer number (40862168100).

Almost surely, 2^{2102201311320} is an apocalyptic number.

2102201311320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102201311320 is an abundant number, since it is smaller than the sum of its proper divisors (5743334963880).

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

2102201311320 is a wasteful number, since it uses less digits than its factorization.

2102201311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27939990 (or 27939983 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2102201311320 its reverse (231131022012), we get a palindrome (2333332333332).

The spelling of 2102201311320 in words is "two trillion, one hundred two billion, two hundred one million, three hundred eleven thousand, three hundred twenty".