10111020203 has 4 divisors (see below), whose sum is σ = 10111963200. Its totient is φ = 10110077208.

The previous prime is 10111020193. The next prime is 10111020287. The reversal of 10111020203 is 30202011101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30202011101 = 179 ⋅168726319.

It is a cyclic number.

It is not a de Polignac number, because 10111020203 - 2¹² = 10111016107 is a prime.

It is a super-2 number, since 2×10111020203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10111026203) 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, 455228 + ... + 476921.

It is an arithmetic number, because the mean of its divisors is an integer number (2527990800).

Almost surely, 2^10111020203 is an apocalyptic number.

10111020203 is a deficient number, since it is larger than the sum of its proper divisors (942997).

10111020203 is an equidigital number, since it uses as much as digits as its factorization.

10111020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942996.

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

Adding to 10111020203 its reverse (30202011101), we get a palindrome (40313031304).

The spelling of 10111020203 in words is "ten billion, one hundred eleven million, twenty thousand, two hundred three".