213254551121326 has 64 divisors (see below), whose sum is σ = 397981803522240. Its totient is φ = 84199158005760.

The previous prime is 213254551121323. The next prime is 213254551121401. The reversal of 213254551121326 is 623121155452312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213254551121323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23627590 + ... + 31381078.

It is an arithmetic number, because the mean of its divisors is an integer number (6218465680035).

Almost surely, 2^{213254551121326} is an apocalyptic number.

213254551121326 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

213254551121326 is a deficient number, since it is larger than the sum of its proper divisors (184727252400914).

213254551121326 is a wasteful number, since it uses less digits than its factorization.

213254551121326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7759189.

The product of its digits is 432000, while the sum is 43.

The spelling of 213254551121326 in words is "two hundred thirteen trillion, two hundred fifty-four billion, five hundred fifty-one million, one hundred twenty-one thousand, three hundred twenty-six".