201121102103 has 2 divisors, whose sum is σ = 201121102104. Its totient is φ = 201121102102.

The previous prime is 201121102087. The next prime is 201121102129. The reversal of 201121102103 is 301201121102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201121102103 - 2⁴ = 201121102087 is a prime.

It is a super-2 number, since 2×201121102103² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201121102163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560551051 + 100560551052.

It is an arithmetic number, because the mean of its divisors is an integer number (100560551052).

Almost surely, 2^201121102103 is an apocalyptic number.

201121102103 is a deficient number, since it is larger than the sum of its proper divisors (1).

201121102103 is an equidigital number, since it uses as much as digits as its factorization.

201121102103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 201121102103 its reverse (301201121102), we get a palindrome (502322223205).

The spelling of 201121102103 in words is "two hundred one billion, one hundred twenty-one million, one hundred two thousand, one hundred three".