1200113202123 has 12 divisors (see below), whose sum is σ = 1891087470168. Its totient is φ = 727341334560.

The previous prime is 1200113202109. The next prime is 1200113202133. The reversal of 1200113202123 is 3212023110021.

1200113202123 is a `hidden beast` number, since 120 + 0 + 11 + 320 + 212 + 3 = 666.

It is not a de Polignac number, because 1200113202123 - 2⁵ = 1200113202091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200113202096 and 1200113202105.

It is not an unprimeable number, because it can be changed into a prime (1200113202133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6061177690 + ... + 6061177887.

It is an arithmetic number, because the mean of its divisors is an integer number (157590622514).

Almost surely, 2^{1200113202123} is an apocalyptic number.

1200113202123 is a deficient number, since it is larger than the sum of its proper divisors (690974268045).

1200113202123 is a wasteful number, since it uses less digits than its factorization.

1200113202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12122355594 (or 12122355591 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1200113202123 its reverse (3212023110021), we get a palindrome (4412136312144).

The spelling of 1200113202123 in words is "one trillion, two hundred billion, one hundred thirteen million, two hundred two thousand, one hundred twenty-three".