213123556054 has 16 divisors (see below), whose sum is σ = 336948519600. Its totient is φ = 100821970944.

The previous prime is 213123556049. The next prime is 213123556171. The reversal of 213123556054 is 450655321312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3617407 + ... + 3675850.

It is an arithmetic number, because the mean of its divisors is an integer number (21059282475).

Almost surely, 2^213123556054 is an apocalyptic number.

213123556054 is a deficient number, since it is larger than the sum of its proper divisors (123824963546).

213123556054 is a wasteful number, since it uses less digits than its factorization.

213123556054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7294047.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 213123556054 its reverse (450655321312), we get a palindrome (663778877366).

The spelling of 213123556054 in words is "two hundred thirteen billion, one hundred twenty-three million, five hundred fifty-six thousand, fifty-four".