1021434603 has 32 divisors (see below), whose sum is σ = 1605090816. Its totient is φ = 565713408.

The previous prime is 1021434553. The next prime is 1021434611. The reversal of 1021434603 is 3064341201.

It is not a de Polignac number, because 1021434603 - 2⁶ = 1021434539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021435603) 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 in 31 ways as a sum of consecutive naturals, for example, 86851 + ... + 97907.

It is an arithmetic number, because the mean of its divisors is an integer number (50159088).

Almost surely, 2^1021434603 is an apocalyptic number.

1021434603 is a deficient number, since it is larger than the sum of its proper divisors (583656213).

1021434603 is a wasteful number, since it uses less digits than its factorization.

1021434603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11203.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1021434603 is about 31959.8905348563. The cubic root of 1021434603 is about 1007.0944178791.

Adding to 1021434603 its reverse (3064341201), we get a palindrome (4085775804).

The spelling of 1021434603 in words is "one billion, twenty-one million, four hundred thirty-four thousand, six hundred three".