1021404322203 has 4 divisors (see below), whose sum is σ = 1361872429608. Its totient is φ = 680936214800.

The previous prime is 1021404322189. The next prime is 1021404322219. The reversal of 1021404322203 is 3022234041201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021404322203 - 2⁵ = 1021404322171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021404322243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170234053698 + ... + 170234053703.

It is an arithmetic number, because the mean of its divisors is an integer number (340468107402).

Almost surely, 2^{1021404322203} is an apocalyptic number.

1021404322203 is a deficient number, since it is larger than the sum of its proper divisors (340468107405).

1021404322203 is an equidigital number, since it uses as much as digits as its factorization.

1021404322203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340468107404.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1021404322203 its reverse (3022234041201), we get a palindrome (4043638363404).

The spelling of 1021404322203 in words is "one trillion, twenty-one billion, four hundred four million, three hundred twenty-two thousand, two hundred three".