1011101000203 has 8 divisors (see below), whose sum is σ = 1155558744800. Its totient is φ = 866646941760.

The previous prime is 1011101000171. The next prime is 1011101000237. The reversal of 1011101000203 is 3020001011101.

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 1011101000203 - 2⁵ = 1011101000171 is a prime.

It is a super-2 number, since 2×1011101000203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011101000203.

It is not an unprimeable number, because it can be changed into a prime (1011101003203) 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 7 ways as a sum of consecutive naturals, for example, 306378 + ... + 1454671.

It is an arithmetic number, because the mean of its divisors is an integer number (144444843100).

Almost surely, 2^{1011101000203} is an apocalyptic number.

1011101000203 is a deficient number, since it is larger than the sum of its proper divisors (144457744597).

1011101000203 is an equidigital number, since it uses as much as digits as its factorization.

1011101000203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843077.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 1011101000203 its reverse (3020001011101), we get a palindrome (4031102011304).

The spelling of 1011101000203 in words is "one trillion, eleven billion, one hundred one million, two hundred three", and thus it is an aban number.