213123012122302 has 4 divisors (see below), whose sum is σ = 319684518183456. Its totient is φ = 106561506061150.

The previous prime is 213123012122297. The next prime is 213123012122327. The reversal of 213123012122302 is 203221210321312.

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, 53280753030574 + ... + 53280753030577.

It is an arithmetic number, because the mean of its divisors is an integer number (79921129545864).

Almost surely, 2^{213123012122302} is an apocalyptic number.

213123012122302 is a deficient number, since it is larger than the sum of its proper divisors (106561506061154).

213123012122302 is a wasteful number, since it uses less digits than its factorization.

213123012122302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106561506061153.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 213123012122302 its reverse (203221210321312), we get a palindrome (416344222443614).

The spelling of 213123012122302 in words is "two hundred thirteen trillion, one hundred twenty-three billion, twelve million, one hundred twenty-two thousand, three hundred two".