123201121233 has 16 divisors (see below), whose sum is σ = 164898415616. Its totient is φ = 81819130320.

The previous prime is 123201121163. The next prime is 123201121237. The reversal of 123201121233 is 332121102321.

It is not a de Polignac number, because 123201121233 - 2²⁰ = 123200072657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123201121237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3042228 + ... + 3082458.

It is an arithmetic number, because the mean of its divisors is an integer number (10306150976).

Almost surely, 2^123201121233 is an apocalyptic number.

It is an amenable number.

123201121233 is a deficient number, since it is larger than the sum of its proper divisors (41697294383).

123201121233 is a wasteful number, since it uses less digits than its factorization.

123201121233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44124.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123201121233 its reverse (332121102321), we get a palindrome (455322223554).

The spelling of 123201121233 in words is "one hundred twenty-three billion, two hundred one million, one hundred twenty-one thousand, two hundred thirty-three".