2121343001 has 2 divisors, whose sum is σ = 2121343002. Its totient is φ = 2121343000.

The previous prime is 2121342961. The next prime is 2121343013. The reversal of 2121343001 is 1003431212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1789374601 + 331968400 = 42301^2 + 18220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121343001 - 2¹⁴ = 2121326617 is a prime.

It is a super-2 number, since 2×2121343001² = 9000192255783372002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2121343031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060671500 + 1060671501.

It is an arithmetic number, because the mean of its divisors is an integer number (1060671501).

Almost surely, 2^2121343001 is an apocalyptic number.

It is an amenable number.

2121343001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121343001 is an equidigital number, since it uses as much as digits as its factorization.

2121343001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2121343001 is about 46058.0394828091. The cubic root of 2121343001 is about 1284.9028679981.

Adding to 2121343001 its reverse (1003431212), we get a palindrome (3124774213).

The spelling of 2121343001 in words is "two billion, one hundred twenty-one million, three hundred forty-three thousand, one".