213120343144042 has 8 divisors (see below), whose sum is σ = 319680684983556. Its totient is φ = 106560114816192.

The previous prime is 213120343144039. The next prime is 213120343144099. The reversal of 213120343144042 is 240441343021312.

It can be written as a sum of positive squares in 2 ways, for example, as 211559090395041 + 1561252749001 = 14545071^2 + 1249501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 213120343143989 and 213120343144007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23517633 + ... + 31294084.

Almost surely, 2^{213120343144042} is an apocalyptic number.

213120343144042 is a deficient number, since it is larger than the sum of its proper divisors (106560341839514).

213120343144042 is a wasteful number, since it uses less digits than its factorization.

213120343144042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56755832.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 213120343144042 its reverse (240441343021312), we get a palindrome (453561686165354).

The spelling of 213120343144042 in words is "two hundred thirteen trillion, one hundred twenty billion, three hundred forty-three million, one hundred forty-four thousand, forty-two".