11111001010203 has 8 divisors (see below), whose sum is σ = 14814695370816. Its totient is φ = 7407320328200.

The previous prime is 11111001010183. The next prime is 11111001010231. The reversal of 11111001010203 is 30201010011111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111001010203 - 2¹⁷ = 11111000879131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111001011203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344393 + ... + 4901978.

It is an arithmetic number, because the mean of its divisors is an integer number (1851836921352).

Almost surely, 2^{11111001010203} is an apocalyptic number.

11111001010203 is a deficient number, since it is larger than the sum of its proper divisors (3703694360613).

11111001010203 is an equidigital number, since it uses as much as digits as its factorization.

11111001010203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839305.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11111001010203 its reverse (30201010011111), we get a palindrome (41312011021314).

The spelling of 11111001010203 in words is "eleven trillion, one hundred eleven billion, one million, ten thousand, two hundred three".