231201012103121 has 16 divisors (see below), whose sum is σ = 242527344009984. Its totient is φ = 219981314503104.

The previous prime is 231201012103097. The next prime is 231201012103151. The reversal of 231201012103121 is 121301210102132.

It is a cyclic number.

It is not a de Polignac number, because 231201012103121 - 2⁶ = 231201012103057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231201012103093 and 231201012103102.

It is not an unprimeable number, because it can be changed into a prime (231201012103151) 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, 17011895 + ... + 27419091.

It is an arithmetic number, because the mean of its divisors is an integer number (15157959000624).

Almost surely, 2^{231201012103121} is an apocalyptic number.

It is an amenable number.

231201012103121 is a deficient number, since it is larger than the sum of its proper divisors (11326331906863).

231201012103121 is a wasteful number, since it uses less digits than its factorization.

231201012103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10412320.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 231201012103121 its reverse (121301210102132), we get a palindrome (352502222205253).

The spelling of 231201012103121 in words is "two hundred thirty-one trillion, two hundred one billion, twelve million, one hundred three thousand, one hundred twenty-one".