1020210323203 has 4 divisors (see below), whose sum is σ = 1032502013928. Its totient is φ = 1007918632480.

The previous prime is 1020210323191. The next prime is 1020210323221. The reversal of 1020210323203 is 3023230120201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020210323203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020210323233) 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 3 ways as a sum of consecutive naturals, for example, 6145845238 + ... + 6145845403.

It is an arithmetic number, because the mean of its divisors is an integer number (258125503482).

Almost surely, 2^{1020210323203} is an apocalyptic number.

1020210323203 is a deficient number, since it is larger than the sum of its proper divisors (12291690725).

1020210323203 is an equidigital number, since it uses as much as digits as its factorization.

1020210323203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12291690724.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1020210323203 its reverse (3023230120201), we get a palindrome (4043440443404).

The spelling of 1020210323203 in words is "one trillion, twenty billion, two hundred ten million, three hundred twenty-three thousand, two hundred three".