1000011210203 has 4 divisors (see below), whose sum is σ = 1009720057008. Its totient is φ = 990302363400.

The previous prime is 1000011210181. The next prime is 1000011210277. The reversal of 1000011210203 is 3020121100001.

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 1000011210203 - 2¹⁶ = 1000011144667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000011210293) 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, 4854423248 + ... + 4854423453.

It is an arithmetic number, because the mean of its divisors is an integer number (252430014252).

Almost surely, 2^{1000011210203} is an apocalyptic number.

1000011210203 is a deficient number, since it is larger than the sum of its proper divisors (9708846805).

1000011210203 is an equidigital number, since it uses as much as digits as its factorization.

1000011210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9708846804.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1000011210203 its reverse (3020121100001), we get a palindrome (4020132310204).

The spelling of 1000011210203 in words is "one trillion, eleven million, two hundred ten thousand, two hundred three".