213233420042 has 16 divisors (see below), whose sum is σ = 324268437192. Its totient is φ = 105144272640.

The previous prime is 213233419999. The next prime is 213233420047. The reversal of 213233420042 is 240024332312.

213233420042 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 174731524081 + 38501895961 = 418009^2 + 196219^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213233419993 and 213233420020.

It is not an unprimeable number, because it can be changed into a prime (213233420047) 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, 1284992 + ... + 1441412.

Almost surely, 2^213233420042 is an apocalyptic number.

213233420042 is a deficient number, since it is larger than the sum of its proper divisors (111035017150).

213233420042 is a wasteful number, since it uses less digits than its factorization.

213233420042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165833.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 213233420042 its reverse (240024332312), we get a palindrome (453257752354).

The spelling of 213233420042 in words is "two hundred thirteen billion, two hundred thirty-three million, four hundred twenty thousand, forty-two".