2021141120321 has 4 divisors (see below), whose sum is σ = 2041152418644. Its totient is φ = 2001129822000.

The previous prime is 2021141120291. The next prime is 2021141120351. The reversal of 2021141120321 is 1230211411202.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2021141120291) and next prime (2021141120351).

It can be written as a sum of positive squares in 2 ways, for example, as 1041910147600 + 979230972721 = 1020740^2 + 989561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021141120321 is a prime.

It is a super-2 number, since 2×2021141120321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2021141120293 and 2021141120302.

It is not an unprimeable number, because it can be changed into a prime (2021141120351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10005649010 + ... + 10005649211.

It is an arithmetic number, because the mean of its divisors is an integer number (510288104661).

Almost surely, 2^{2021141120321} is an apocalyptic number.

It is an amenable number.

2021141120321 is a deficient number, since it is larger than the sum of its proper divisors (20011298323).

2021141120321 is a wasteful number, since it uses less digits than its factorization.

2021141120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20011298322.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2021141120321 its reverse (1230211411202), we get a palindrome (3251352531523).

The spelling of 2021141120321 in words is "two trillion, twenty-one billion, one hundred forty-one million, one hundred twenty thousand, three hundred twenty-one".