231220335141 has 6 divisors (see below), whose sum is σ = 333984928550. Its totient is φ = 154146890088.

The previous prime is 231220335119. The next prime is 231220335163. The reversal of 231220335141 is 141533022132.

231220335141 is a `hidden beast` number, since 2 + 312 + 2 + 0 + 335 + 14 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (231220335119) and next prime (231220335163).

It can be written as a sum of positive squares in only one way, i.e., 154255704516 + 76964630625 = 392754^2 + 277425^2 .

It is not a de Polignac number, because 231220335141 - 2¹¹ = 231220333093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231220335191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12845574166 + ... + 12845574183.

Almost surely, 2^231220335141 is an apocalyptic number.

It is an amenable number.

231220335141 is a deficient number, since it is larger than the sum of its proper divisors (102764593409).

231220335141 is a wasteful number, since it uses less digits than its factorization.

231220335141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25691148355 (or 25691148352 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 231220335141 its reverse (141533022132), we get a palindrome (372753357273).

The spelling of 231220335141 in words is "two hundred thirty-one billion, two hundred twenty million, three hundred thirty-five thousand, one hundred forty-one".