2121423041 has 8 divisors (see below), whose sum is σ = 2129217960. Its totient is φ = 2113638912.

The previous prime is 2121422999. The next prime is 2121423043. The reversal of 2121423041 is 1403241212.

It can be written as a sum of positive squares in 4 ways, for example, as 143041600 + 1978381441 = 11960^2 + 44479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2121423041 - 2⁶ = 2121422977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121423043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680795 + ... + 683903.

It is an arithmetic number, because the mean of its divisors is an integer number (266152245).

Almost surely, 2^2121423041 is an apocalyptic number.

It is an amenable number.

2121423041 is a deficient number, since it is larger than the sum of its proper divisors (7794919).

2121423041 is a wasteful number, since it uses less digits than its factorization.

2121423041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5395.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2121423041 is about 46058.9083782931. The cubic root of 2121423041 is about 1284.9190279389.

Adding to 2121423041 its reverse (1403241212), we get a palindrome (3524664253).

The spelling of 2121423041 in words is "two billion, one hundred twenty-one million, four hundred twenty-three thousand, forty-one".