213521413323254 has 32 divisors (see below), whose sum is σ = 339496468286976. Its totient is φ = 100369798462080.

The previous prime is 213521413323247. The next prime is 213521413323289. The reversal of 213521413323254 is 452323314125312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490420799 + ... + 490855989.

It is an arithmetic number, because the mean of its divisors is an integer number (10609264633968).

Almost surely, 2^{213521413323254} is an apocalyptic number.

213521413323254 is a deficient number, since it is larger than the sum of its proper divisors (125975054963722).

213521413323254 is a wasteful number, since it uses less digits than its factorization.

213521413323254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451100.

The product of its digits is 518400, while the sum is 41.

Adding to 213521413323254 its reverse (452323314125312), we get a palindrome (665844727448566).

The spelling of 213521413323254 in words is "two hundred thirteen trillion, five hundred twenty-one billion, four hundred thirteen million, three hundred twenty-three thousand, two hundred fifty-four".