1201113120123 has 24 divisors (see below), whose sum is σ = 1995419164128. Its totient is φ = 681978690432.

The previous prime is 1201113120091. The next prime is 1201113120127. The reversal of 1201113120123 is 3210213111021.

1201113120123 is a `hidden beast` number, since 120 + 111 + 312 + 0 + 123 = 666.

It is not a de Polignac number, because 1201113120123 - 2⁵ = 1201113120091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201113120096 and 1201113120105.

It is not an unprimeable number, because it can be changed into a prime (1201113120127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60707586 + ... + 60727367.

It is an arithmetic number, because the mean of its divisors is an integer number (83142465172).

Almost surely, 2^{1201113120123} is an apocalyptic number.

1201113120123 is a deficient number, since it is larger than the sum of its proper divisors (794306044005).

1201113120123 is a wasteful number, since it uses less digits than its factorization.

1201113120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121435123 (or 121435120 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1201113120123 its reverse (3210213111021), we get a palindrome (4411326231144).

The spelling of 1201113120123 in words is "one trillion, two hundred one billion, one hundred thirteen million, one hundred twenty thousand, one hundred twenty-three".