231302210131 has 8 divisors (see below), whose sum is σ = 234980495360. Its totient is φ = 227630572488.

The previous prime is 231302210129. The next prime is 231302210141. The reversal of 231302210131 is 131012203132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231302210131 - 2¹ = 231302210129 is a prime.

It is a super-2 number, since 2×231302210131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231302210099 and 231302210108.

It is not an unprimeable number, because it can be changed into a prime (231302210141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591731 + ... + 1730956.

It is an arithmetic number, because the mean of its divisors is an integer number (29372561920).

Almost surely, 2^231302210131 is an apocalyptic number.

231302210131 is a deficient number, since it is larger than the sum of its proper divisors (3678285229).

231302210131 is a wasteful number, since it uses less digits than its factorization.

231302210131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323793.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231302210131 its reverse (131012203132), we get a palindrome (362314413263).

The spelling of 231302210131 in words is "two hundred thirty-one billion, three hundred two million, two hundred ten thousand, one hundred thirty-one".