1201233033123 has 16 divisors (see below), whose sum is σ = 1687755964800. Its totient is φ = 757856805120.

The previous prime is 1201233033109. The next prime is 1201233033137. The reversal of 1201233033123 is 3213303321021.

It is an interprime number because it is at equal distance from previous prime (1201233033109) and next prime (1201233033137).

It is not a de Polignac number, because 1201233033123 - 2⁶ = 1201233033059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201233033093 and 1201233033102.

It is not an unprimeable number, because it can be changed into a prime (1201233033323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11289493 + ... + 11395398.

It is an arithmetic number, because the mean of its divisors is an integer number (105484747800).

Almost surely, 2^{1201233033123} is an apocalyptic number.

1201233033123 is a deficient number, since it is larger than the sum of its proper divisors (486522931677).

1201233033123 is a wasteful number, since it uses less digits than its factorization.

1201233033123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22685842.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1201233033123 its reverse (3213303321021), we get a palindrome (4414536354144).

The spelling of 1201233033123 in words is "one trillion, two hundred one billion, two hundred thirty-three million, thirty-three thousand, one hundred twenty-three".