2101243229 has 2 divisors, whose sum is σ = 2101243230. Its totient is φ = 2101243228.

The previous prime is 2101243217. The next prime is 2101243259. The reversal of 2101243229 is 9223421012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1521156004 + 580087225 = 39002^2 + 24085^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101243229 - 2¹⁶ = 2101177693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2101243198 and 2101243207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101243259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050621614 + 1050621615.

It is an arithmetic number, because the mean of its divisors is an integer number (1050621615).

Almost surely, 2^2101243229 is an apocalyptic number.

It is an amenable number.

2101243229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101243229 is an equidigital number, since it uses as much as digits as its factorization.

2101243229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2101243229 is about 45839.3196829970. The cubic root of 2101243229 is about 1280.8318219852.

The spelling of 2101243229 in words is "two billion, one hundred one million, two hundred forty-three thousand, two hundred twenty-nine".