213120134324042 has 32 divisors (see below), whose sum is σ = 354883440846528. Its totient is φ = 95181486400000.

The previous prime is 213120134323981. The next prime is 213120134324047. The reversal of 213120134324042 is 240423431021312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213120134324047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365791559 + ... + 366373722.

It is an arithmetic number, because the mean of its divisors is an integer number (11090107526454).

Almost surely, 2^{213120134324042} is an apocalyptic number.

213120134324042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213120134324042 is a deficient number, since it is larger than the sum of its proper divisors (141763306522486).

213120134324042 is a wasteful number, since it uses less digits than its factorization.

213120134324042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732165526.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 213120134324042 its reverse (240423431021312), we get a palindrome (453543565345354).

The spelling of 213120134324042 in words is "two hundred thirteen trillion, one hundred twenty billion, one hundred thirty-four million, three hundred twenty-four thousand, forty-two".