2141121321 has 48 divisors (see below), whose sum is σ = 3336173568. Its totient is φ = 1318464000.

The previous prime is 2141121293. The next prime is 2141121377. The reversal of 2141121321 is 1231211412.

2141121321 is a `hidden beast` number, since 21 + 411 + 213 + 21 = 666.

It is not a de Polignac number, because 2141121321 - 2⁷ = 2141121193 is a prime.

It is a super-2 number, since 2×2141121321² = 9168801022481570082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2141121294 and 2141121303.

It is not an unprimeable number, because it can be changed into a prime (2141121391) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1961986 + ... + 1963076.

It is an arithmetic number, because the mean of its divisors is an integer number (69503616).

Almost surely, 2^2141121321 is an apocalyptic number.

It is an amenable number.

2141121321 is a deficient number, since it is larger than the sum of its proper divisors (1195052247).

2141121321 is a wasteful number, since it uses less digits than its factorization.

2141121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1339 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 2141121321 is about 46272.2521712527. The cubic root of 2141121321 is about 1288.8837811400.

Adding to 2141121321 its reverse (1231211412), we get a palindrome (3372332733).

Subtracting from 2141121321 its reverse (1231211412), we obtain a palindrome (909909909).

The spelling of 2141121321 in words is "two billion, one hundred forty-one million, one hundred twenty-one thousand, three hundred twenty-one".