2141004121 has 4 divisors (see below), whose sum is σ = 2143855744. Its totient is φ = 2138152500.

The previous prime is 2141004109. The next prime is 2141004167. The reversal of 2141004121 is 1214001412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2141004121 - 2⁷ = 2141003993 is a prime.

It is a super-2 number, since 2×2141004121² = 9167797292277965282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2141004095 and 2141004104.

It is not an unprimeable number, because it can be changed into a prime (2141004101) 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, 1424685 + ... + 1426186.

It is an arithmetic number, because the mean of its divisors is an integer number (535963936).

Almost surely, 2^2141004121 is an apocalyptic number.

It is an amenable number.

2141004121 is a deficient number, since it is larger than the sum of its proper divisors (2851623).

2141004121 is an equidigital number, since it uses as much as digits as its factorization.

2141004121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851622.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2141004121 is about 46270.9857362041. The cubic root of 2141004121 is about 1288.8602638777.

Adding to 2141004121 its reverse (1214001412), we get a palindrome (3355005533).

The spelling of 2141004121 in words is "two billion, one hundred forty-one million, four thousand, one hundred twenty-one".