2121133363 has 2 divisors, whose sum is σ = 2121133364. Its totient is φ = 2121133362.

The previous prime is 2121133349. The next prime is 2121133387. The reversal of 2121133363 is 3633311212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121133363 - 2⁹ = 2121132851 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121133463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060566681 + 1060566682.

It is an arithmetic number, because the mean of its divisors is an integer number (1060566682).

Almost surely, 2^2121133363 is an apocalyptic number.

2121133363 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121133363 is an equidigital number, since it uses as much as digits as its factorization.

2121133363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 25.

The square root of 2121133363 is about 46055.7636241112. The cubic root of 2121133363 is about 1284.8605405133.

Adding to 2121133363 its reverse (3633311212), we get a palindrome (5754444575).

The spelling of 2121133363 in words is "two billion, one hundred twenty-one million, one hundred thirty-three thousand, three hundred sixty-three".