231330111201321 has 32 divisors (see below), whose sum is σ = 336661092837888. Its totient is φ = 140124684378240.

The previous prime is 231330111201227. The next prime is 231330111201361. The reversal of 231330111201321 is 123102111033132.

It is not a de Polignac number, because 231330111201321 - 2¹⁷ = 231330111070249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231330111201291 and 231330111201300.

It is not an unprimeable number, because it can be changed into a prime (231330111201361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3152157990 + ... + 3152231376.

It is an arithmetic number, because the mean of its divisors is an integer number (10520659151184).

Almost surely, 2^{231330111201321} is an apocalyptic number.

It is an amenable number.

231330111201321 is a deficient number, since it is larger than the sum of its proper divisors (105330981636567).

231330111201321 is a wasteful number, since it uses less digits than its factorization.

231330111201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123461.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 231330111201321 its reverse (123102111033132), we get a palindrome (354432222234453).

The spelling of 231330111201321 in words is "two hundred thirty-one trillion, three hundred thirty billion, one hundred eleven million, two hundred one thousand, three hundred twenty-one".