123120413201 has 4 divisors (see below), whose sum is σ = 123186149412. Its totient is φ = 123054676992.

The previous prime is 123120413183. The next prime is 123120413243. The reversal of 123120413201 is 102314021321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35465928976 + 87654484225 = 188324^2 + 296065^2 .

It is a cyclic number.

It is not a de Polignac number, because 123120413201 - 2²⁶ = 123053304337 is a prime.

It is a super-2 number, since 2×123120413201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123120413261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32865296 + ... + 32869041.

It is an arithmetic number, because the mean of its divisors is an integer number (30796537353).

Almost surely, 2^123120413201 is an apocalyptic number.

It is an amenable number.

123120413201 is a deficient number, since it is larger than the sum of its proper divisors (65736211).

123120413201 is an equidigital number, since it uses as much as digits as its factorization.

123120413201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65736210.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123120413201 its reverse (102314021321), we get a palindrome (225434434522).

The spelling of 123120413201 in words is "one hundred twenty-three billion, one hundred twenty million, four hundred thirteen thousand, two hundred one".