213323233431234 has 16 divisors (see below), whose sum is σ = 440409256116480. Its totient is φ = 68813946268080.

The previous prime is 213323233431233. The next prime is 213323233431257. The reversal of 213323233431234 is 432134332323312.

It is a junction number, because it is equal to n+sod(n) for n = 213323233431192 and 213323233431201.

It is not an unprimeable number, because it can be changed into a prime (213323233431233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573449552049 + ... + 573449552420.

It is an arithmetic number, because the mean of its divisors is an integer number (27525578507280).

Almost surely, 2^{213323233431234} is an apocalyptic number.

213323233431234 is an abundant number, since it is smaller than the sum of its proper divisors (227086022685246).

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

213323233431234 is a wasteful number, since it uses less digits than its factorization.

213323233431234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146899104505.

The product of its digits is 559872, while the sum is 39.

Adding to 213323233431234 its reverse (432134332323312), we get a palindrome (645457565754546).

The spelling of 213323233431234 in words is "two hundred thirteen trillion, three hundred twenty-three billion, two hundred thirty-three million, four hundred thirty-one thousand, two hundred thirty-four".