11312020203 has 16 divisors (see below), whose sum is σ = 16458840576. Its totient is φ = 6853689440.

The previous prime is 11312020193. The next prime is 11312020229. The reversal of 11312020203 is 30202021311.

It is a cyclic number.

It is not a de Polignac number, because 11312020203 - 2⁸ = 11312019947 is a prime.

It is a super-2 number, since 2×11312020203² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11312020243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62125 + ... + 162737.

It is an arithmetic number, because the mean of its divisors is an integer number (1028677536).

Almost surely, 2^11312020203 is an apocalyptic number.

11312020203 is a deficient number, since it is larger than the sum of its proper divisors (5146820373).

11312020203 is a wasteful number, since it uses less digits than its factorization.

11312020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104034.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11312020203 its reverse (30202021311), we get a palindrome (41514041514).

The spelling of 11312020203 in words is "eleven billion, three hundred twelve million, twenty thousand, two hundred three".