2042331209 has 2 divisors, whose sum is σ = 2042331210. Its totient is φ = 2042331208.

The previous prime is 2042331131. The next prime is 2042331257. The reversal of 2042331209 is 9021332402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1386817600 + 655513609 = 37240^2 + 25603^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042331209 - 2²⁴ = 2025553993 is a prime.

It is a super-2 number, since 2×2042331209² = 8342233534510803362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2042330209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021165604 + 1021165605.

It is an arithmetic number, because the mean of its divisors is an integer number (1021165605).

Almost surely, 2^2042331209 is an apocalyptic number.

It is an amenable number.

2042331209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042331209 is an equidigital number, since it uses as much as digits as its factorization.

2042331209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2042331209 is about 45192.1587114402. The cubic root of 2042331209 is about 1268.7480602945.

The spelling of 2042331209 in words is "two billion, forty-two million, three hundred thirty-one thousand, two hundred nine".