201231002130323 has 16 divisors (see below), whose sum is σ = 221771183752800. Its totient is φ = 181068751745280.

The previous prime is 201231002130313. The next prime is 201231002130337. The reversal of 201231002130323 is 323031200132102.

It is a cyclic number.

It is not a de Polignac number, because 201231002130323 - 2⁴⁰ = 200131490502547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201231002130313) 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, 86912108 + ... + 89197401.

It is an arithmetic number, because the mean of its divisors is an integer number (13860698984550).

Almost surely, 2^{201231002130323} is an apocalyptic number.

201231002130323 is a deficient number, since it is larger than the sum of its proper divisors (20540181622477).

201231002130323 is a wasteful number, since it uses less digits than its factorization.

201231002130323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176110582.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 201231002130323 its reverse (323031200132102), we get a palindrome (524262202262425).

The spelling of 201231002130323 in words is "two hundred one trillion, two hundred thirty-one billion, two million, one hundred thirty thousand, three hundred twenty-three".