213231422034 has 24 divisors (see below), whose sum is σ = 470718424332. Its totient is φ = 69736062240.

The previous prime is 213231422029. The next prime is 213231422137. The reversal of 213231422034 is 430224132312.

213231422034 is a `hidden beast` number, since 2 + 1 + 3 + 231 + 422 + 0 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 190414413225 + 22817008809 = 436365^2 + 151053^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213231421989 and 213231422007.

It is an unprimeable number.

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, 111755557 + ... + 111757464.

Almost surely, 2^213231422034 is an apocalyptic number.

213231422034 is an abundant number, since it is smaller than the sum of its proper divisors (257487002298).

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

213231422034 is a wasteful number, since it uses less digits than its factorization.

213231422034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223513082 (or 223513079 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 213231422034 its reverse (430224132312), we get a palindrome (643455554346).

The spelling of 213231422034 in words is "two hundred thirteen billion, two hundred thirty-one million, four hundred twenty-two thousand, thirty-four".