213414321211551 has 24 divisors (see below), whose sum is σ = 321723300184416. Its totient is φ = 136066879650240.

The previous prime is 213414321211529. The next prime is 213414321211583. The reversal of 213414321211551 is 155112123414312.

213414321211551 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 1 + 432 + 1 + 211 + 5 + 5 + 1 = 666.

It is not a de Polignac number, because 213414321211551 - 2⁷ = 213414321211423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213414321211501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87476140 + ... + 89882721.

It is an arithmetic number, because the mean of its divisors is an integer number (13405137507684).

Almost surely, 2^{213414321211551} is an apocalyptic number.

213414321211551 is a deficient number, since it is larger than the sum of its proper divisors (108308978972865).

213414321211551 is a wasteful number, since it uses less digits than its factorization.

213414321211551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177364703 (or 177364700 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

Adding to 213414321211551 its reverse (155112123414312), we get a palindrome (368526444625863).

The spelling of 213414321211551 in words is "two hundred thirteen trillion, four hundred fourteen billion, three hundred twenty-one million, two hundred eleven thousand, five hundred fifty-one".