213431030442 has 96 divisors (see below), whose sum is σ = 530554197888. Its totient is φ = 60743219328.

The previous prime is 213431030431. The next prime is 213431030467. The reversal of 213431030442 is 244030134312.

213431030442 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 310 + 304 + 42 = 666.

213431030442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×213431030442³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 47606733 + ... + 47611215.

It is an arithmetic number, because the mean of its divisors is an integer number (5526606228).

Almost surely, 2^213431030442 is an apocalyptic number.

213431030442 is an abundant number, since it is smaller than the sum of its proper divisors (317123167446).

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

213431030442 is a wasteful number, since it uses less digits than its factorization.

213431030442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5884 (or 5881 counting only the distinct ones).

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

Adding to 213431030442 its reverse (244030134312), we get a palindrome (457461164754).

The spelling of 213431030442 in words is "two hundred thirteen billion, four hundred thirty-one million, thirty thousand, four hundred forty-two".