2040243431 has 2 divisors, whose sum is σ = 2040243432. Its totient is φ = 2040243430.

The previous prime is 2040243419. The next prime is 2040243437. The reversal of 2040243431 is 1343420402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2040243431 - 2⁶ = 2040243367 is a prime.

It is a super-2 number, since 2×2040243431² = 8325186515477303522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2040243397 and 2040243406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2040243437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020121715 + 1020121716.

It is an arithmetic number, because the mean of its divisors is an integer number (1020121716).

Almost surely, 2^2040243431 is an apocalyptic number.

2040243431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040243431 is an equidigital number, since it uses as much as digits as its factorization.

2040243431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2040243431 is about 45169.0539086220. The cubic root of 2040243431 is about 1268.3155859744.

Adding to 2040243431 its reverse (1343420402), we get a palindrome (3383663833).

The spelling of 2040243431 in words is "two billion, forty million, two hundred forty-three thousand, four hundred thirty-one".