233131405350340 has 36 divisors (see below), whose sum is σ = 569506718786796. Its totient is φ = 79930767548352.

The previous prime is 233131405350323. The next prime is 233131405350341. The reversal of 233131405350340 is 43053504131332.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91375092777024 + 141756312573316 = 9559032^2 + 11906146^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 233131405350340.

It is not an unprimeable number, because it can be changed into a prime (233131405350341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118944593587 + ... + 118944595546.

It is an arithmetic number, because the mean of its divisors is an integer number (15819631077411).

Almost surely, 2^{233131405350340} is an apocalyptic number.

233131405350340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233131405350340 is an abundant number, since it is smaller than the sum of its proper divisors (336375313436456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233131405350340 is a wasteful number, since it uses less digits than its factorization.

233131405350340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237889189156 (or 237889189147 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 37.

Adding to 233131405350340 its reverse (43053504131332), we get a palindrome (276184909481672).

The spelling of 233131405350340 in words is "two hundred thirty-three trillion, one hundred thirty-one billion, four hundred five million, three hundred fifty thousand, three hundred forty".