201103133123 has 2 divisors, whose sum is σ = 201103133124. Its totient is φ = 201103133122.

The previous prime is 201103133111. The next prime is 201103133129. The reversal of 201103133123 is 321331301102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201103133123 - 2²² = 201098938819 is a prime.

It is a super-3 number, since 3×201103133123³ (a number of 35 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 201103133095 and 201103133104.

It is not a weakly prime, because it can be changed into another prime (201103133129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100551566561 + 100551566562.

It is an arithmetic number, because the mean of its divisors is an integer number (100551566562).

Almost surely, 2^201103133123 is an apocalyptic number.

201103133123 is a deficient number, since it is larger than the sum of its proper divisors (1).

201103133123 is an equidigital number, since it uses as much as digits as its factorization.

201103133123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 201103133123 its reverse (321331301102), we get a palindrome (522434434225).

The spelling of 201103133123 in words is "two hundred one billion, one hundred three million, one hundred thirty-three thousand, one hundred twenty-three".