2021123352312 has 160 divisors (see below), whose sum is σ = 5697214926480. Its totient is φ = 669404736000.

The previous prime is 2021123352307. The next prime is 2021123352323. The reversal of 2021123352312 is 2132533211202.

2021123352312 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 12 + 335 + 2 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 224539812 + ... + 224548812.

Almost surely, 2^{2021123352312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021123352312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2848607463240).

2021123352312 is an abundant number, since it is smaller than the sum of its proper divisors (3676091574168).

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

2021123352312 is a wasteful number, since it uses less digits than its factorization.

2021123352312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11195 (or 11182 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 2021123352312 its reverse (2132533211202), we get a palindrome (4153656563514).

The spelling of 2021123352312 in words is "two trillion, twenty-one billion, one hundred twenty-three million, three hundred fifty-two thousand, three hundred twelve".