1023300021203 has 4 divisors (see below), whose sum is σ = 1023310319568. Its totient is φ = 1023289722840.

The previous prime is 1023300021199. The next prime is 1023300021251. The reversal of 1023300021203 is 3021200033201.

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 1023300021203 - 2² = 1023300021199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023300021253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4998668 + ... + 5199353.

It is an arithmetic number, because the mean of its divisors is an integer number (255827579892).

Almost surely, 2^{1023300021203} is an apocalyptic number.

1023300021203 is a deficient number, since it is larger than the sum of its proper divisors (10298365).

1023300021203 is a wasteful number, since it uses less digits than its factorization.

1023300021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298364.

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

Adding to 1023300021203 its reverse (3021200033201), we get a palindrome (4044500054404).

The spelling of 1023300021203 in words is "one trillion, twenty-three billion, three hundred million, twenty-one thousand, two hundred three".