203111054223 has 32 divisors (see below), whose sum is σ = 352319127552. Its totient is φ = 100924744800.

The previous prime is 203111054213. The next prime is 203111054287. The reversal of 203111054223 is 322450111302.

It is not a de Polignac number, because 203111054223 - 2¹⁰ = 203111053199 is a prime.

It is a super-2 number, since 2×203111054223² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203111054193 and 203111054202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203111054213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19109223 + ... + 19119848.

It is an arithmetic number, because the mean of its divisors is an integer number (11009972736).

Almost surely, 2^203111054223 is an apocalyptic number.

203111054223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

203111054223 is a deficient number, since it is larger than the sum of its proper divisors (149208073329).

203111054223 is a wasteful number, since it uses less digits than its factorization.

203111054223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38229115.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 203111054223 its reverse (322450111302), we get a palindrome (525561165525).

The spelling of 203111054223 in words is "two hundred three billion, one hundred eleven million, fifty-four thousand, two hundred twenty-three".