231550441331331 has 8 divisors (see below), whose sum is σ = 308734207825600. Its totient is φ = 154366817862312.

The previous prime is 231550441331329. The next prime is 231550441331333. The reversal of 231550441331331 is 133133144055132.

It is an interprime number because it is at equal distance from previous prime (231550441331329) and next prime (231550441331333).

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

It is not a de Polignac number, because 231550441331331 - 2¹ = 231550441331329 is a prime.

It is a super-2 number, since 2×231550441331331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231550441331331.

It is not an unprimeable number, because it can be changed into a prime (231550441331333) 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, 31919965 + ... + 38496558.

It is an arithmetic number, because the mean of its divisors is an integer number (38591775978200).

Almost surely, 2^{231550441331331} is an apocalyptic number.

231550441331331 is a deficient number, since it is larger than the sum of its proper divisors (77183766494269).

231550441331331 is a wasteful number, since it uses less digits than its factorization.

231550441331331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71512625.

The product of its (nonzero) digits is 194400, while the sum is 39.

Adding to 231550441331331 its reverse (133133144055132), we get a palindrome (364683585386463).

The spelling of 231550441331331 in words is "two hundred thirty-one trillion, five hundred fifty billion, four hundred forty-one million, three hundred thirty-one thousand, three hundred thirty-one".