1021432043 has 2 divisors, whose sum is σ = 1021432044. Its totient is φ = 1021432042.

The previous prime is 1021432037. The next prime is 1021432067. The reversal of 1021432043 is 3402341201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021432043 - 2⁶ = 1021431979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021432003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510716021 + 510716022.

It is an arithmetic number, because the mean of its divisors is an integer number (510716022).

Almost surely, 2^1021432043 is an apocalyptic number.

1021432043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021432043 is an equidigital number, since it uses as much as digits as its factorization.

1021432043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1021432043 is about 31959.8504846315. The cubic root of 1021432043 is about 1007.0935765253.

Adding to 1021432043 its reverse (3402341201), we get a palindrome (4423773244).

The spelling of 1021432043 in words is "one billion, twenty-one million, four hundred thirty-two thousand, forty-three".