231200120122 has 16 divisors (see below), whose sum is σ = 367724052072. Its totient is φ = 108644838400.

The previous prime is 231200120117. The next prime is 231200120143. The reversal of 231200120122 is 221021002132.

It is a happy number.

231200120122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 215425011321 + 15775108801 = 464139^2 + 125599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231200120096 and 231200120105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4826383 + ... + 4874050.

Almost surely, 2^231200120122 is an apocalyptic number.

231200120122 is a deficient number, since it is larger than the sum of its proper divisors (136523931950).

231200120122 is a wasteful number, since it uses less digits than its factorization.

231200120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9701153.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 231200120122 its reverse (221021002132), we get a palindrome (452221122254).

The spelling of 231200120122 in words is "two hundred thirty-one billion, two hundred million, one hundred twenty thousand, one hundred twenty-two".