201123103111198 has 16 divisors (see below), whose sum is σ = 301768497810000. Its totient is φ = 100533607590592.

The previous prime is 201123103111123. The next prime is 201123103111207. The reversal of 201123103111198 is 891111301321102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107218353 + ... + 109078051.

It is an arithmetic number, because the mean of its divisors is an integer number (18860531113125).

Almost surely, 2^{201123103111198} is an apocalyptic number.

201123103111198 is a deficient number, since it is larger than the sum of its proper divisors (100645394698802).

201123103111198 is a wasteful number, since it uses less digits than its factorization.

201123103111198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874699.

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 201123103111198 in words is "two hundred one trillion, one hundred twenty-three billion, one hundred three million, one hundred eleven thousand, one hundred ninety-eight".