1021203323 has 4 divisors (see below), whose sum is σ = 1167089520. Its totient is φ = 875317128.

The previous prime is 1021203319. The next prime is 1021203341. The reversal of 1021203323 is 3233021201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3233021201 = 79 ⋅40924319.

It is not a de Polignac number, because 1021203323 - 2² = 1021203319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021203373) 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, 72943088 + ... + 72943101.

It is an arithmetic number, because the mean of its divisors is an integer number (291772380).

Almost surely, 2^1021203323 is an apocalyptic number.

1021203323 is a deficient number, since it is larger than the sum of its proper divisors (145886197).

1021203323 is an equidigital number, since it uses as much as digits as its factorization.

1021203323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145886196.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1021203323 is about 31956.2720447802. The cubic root of 1021203323 is about 1007.0184011414.

Adding to 1021203323 its reverse (3233021201), we get a palindrome (4254224524).

The spelling of 1021203323 in words is "one billion, twenty-one million, two hundred three thousand, three hundred twenty-three".