2021031343 has 2 divisors, whose sum is σ = 2021031344. Its totient is φ = 2021031342.

The previous prime is 2021031307. The next prime is 2021031359. The reversal of 2021031343 is 3431301202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021031343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021031343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021031743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010515671 + 1010515672.

It is an arithmetic number, because the mean of its divisors is an integer number (1010515672).

Almost surely, 2^2021031343 is an apocalyptic number.

2021031343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021031343 is an equidigital number, since it uses as much as digits as its factorization.

2021031343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2021031343 is about 44955.8821846485. The cubic root of 2021031343 is about 1264.3219648550.

Adding to 2021031343 its reverse (3431301202), we get a palindrome (5452332545).

The spelling of 2021031343 in words is "two billion, twenty-one million, thirty-one thousand, three hundred forty-three".