231303101031243 has 24 divisors (see below), whose sum is σ = 351690492114000. Its totient is φ = 146085518343744.

The previous prime is 231303101031229. The next prime is 231303101031329. The reversal of 231303101031243 is 342130101303132.

231303101031243 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 0 + 310 + 103 + 1 + 243 = 666.

231303101031243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231303101031243 - 2¹⁰ = 231303101030219 is a prime.

It is a super-2 number, since 2×231303101031243² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231303101032243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37041021 + ... + 42832737.

It is an arithmetic number, because the mean of its divisors is an integer number (14653770504750).

Almost surely, 2^{231303101031243} is an apocalyptic number.

231303101031243 is a deficient number, since it is larger than the sum of its proper divisors (120387391082757).

231303101031243 is a wasteful number, since it uses less digits than its factorization.

231303101031243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025291 (or 6025288 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 231303101031243 its reverse (342130101303132), we get a palindrome (573433202334375).

The spelling of 231303101031243 in words is "two hundred thirty-one trillion, three hundred three billion, one hundred one million, thirty-one thousand, two hundred forty-three".