213020140342 has 4 divisors (see below), whose sum is σ = 319530210516. Its totient is φ = 106510070170.

The previous prime is 213020140303. The next prime is 213020140373. The reversal of 213020140342 is 243041020312.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53255035084 + ... + 53255035087.

It is an arithmetic number, because the mean of its divisors is an integer number (79882552629).

Almost surely, 2^213020140342 is an apocalyptic number.

213020140342 is a deficient number, since it is larger than the sum of its proper divisors (106510070174).

213020140342 is a wasteful number, since it uses less digits than its factorization.

213020140342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106510070173.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 213020140342 its reverse (243041020312), we get a palindrome (456061160654).

The spelling of 213020140342 in words is "two hundred thirteen billion, twenty million, one hundred forty thousand, three hundred forty-two".