123401200205 has 8 divisors (see below), whose sum is σ = 148716984312. Its totient is φ = 98297264128.

The previous prime is 123401200189. The next prime is 123401200213. The reversal of 123401200205 is 502002104321.

It can be written as a sum of positive squares in 4 ways, for example, as 27507549316 + 95893650889 = 165854^2 + 309667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123401200205 - 2⁴ = 123401200189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52960724 + ... + 52963053.

It is an arithmetic number, because the mean of its divisors is an integer number (18589623039).

Almost surely, 2^123401200205 is an apocalyptic number.

It is an amenable number.

123401200205 is a deficient number, since it is larger than the sum of its proper divisors (25315784107).

123401200205 is a wasteful number, since it uses less digits than its factorization.

123401200205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105924015.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 123401200205 its reverse (502002104321), we get a palindrome (625403304526).

The spelling of 123401200205 in words is "one hundred twenty-three billion, four hundred one million, two hundred thousand, two hundred five".