1021430343 has 8 divisors (see below), whose sum is σ = 1382234368. Its totient is φ = 670789944.

The previous prime is 1021430327. The next prime is 1021430351. The reversal of 1021430343 is 3430341201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1021430343 - 2⁴ = 1021430327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021430303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2540671 + ... + 2541072.

It is an arithmetic number, because the mean of its divisors is an integer number (172779296).

Almost surely, 2^1021430343 is an apocalyptic number.

1021430343 is a deficient number, since it is larger than the sum of its proper divisors (360804025).

1021430343 is an equidigital number, since it uses as much as digits as its factorization.

1021430343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081813.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1021430343 is about 31959.8238887513. The cubic root of 1021430343 is about 1007.0930178129.

Adding to 1021430343 its reverse (3430341201), we get a palindrome (4451771544).

The spelling of 1021430343 in words is "one billion, twenty-one million, four hundred thirty thousand, three hundred forty-three".