123123021201 has 24 divisors (see below), whose sum is σ = 178081600320. Its totient is φ = 81972612000.

The previous prime is 123123021173. The next prime is 123123021293. The reversal of 123123021201 is 102120321321.

123123021201 is a `hidden beast` number, since 1 + 231 + 230 + 2 + 1 + 201 = 666.

It is not a de Polignac number, because 123123021201 - 2⁶ = 123123021137 is a prime.

It is a super-3 number, since 3×123123021201³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (123123022201) 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, 33265651 + ... + 33269351.

It is an arithmetic number, because the mean of its divisors is an integer number (7420066680).

Almost surely, 2^123123021201 is an apocalyptic number.

It is an amenable number.

123123021201 is a deficient number, since it is larger than the sum of its proper divisors (54958579119).

123123021201 is a wasteful number, since it uses less digits than its factorization.

123123021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7637 (or 7634 counting only the distinct ones).

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

Adding to 123123021201 its reverse (102120321321), we get a palindrome (225243342522).

The spelling of 123123021201 in words is "one hundred twenty-three billion, one hundred twenty-three million, twenty-one thousand, two hundred one".