213344125235154 has 24 divisors (see below), whose sum is σ = 478185108286860. Its totient is φ = 68662477087008.

The previous prime is 213344125235123. The next prime is 213344125235159. The reversal of 213344125235154 is 451532521443312.

213344125235154 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 4 + 4 + 125 + 2 + 3 + 515 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 211518424330929 + 1825700904225 = 14543673^2 + 1351185^2 .

It is not an unprimeable number, because it can be changed into a prime (213344125235159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204352609857 + ... + 204352610900.

Almost surely, 2^{213344125235154} is an apocalyptic number.

213344125235154 is an abundant number, since it is smaller than the sum of its proper divisors (264840983051706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213344125235154 is a wasteful number, since it uses less digits than its factorization.

213344125235154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408705220794 (or 408705220791 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

Adding to 213344125235154 its reverse (451532521443312), we get a palindrome (664876646678466).

The spelling of 213344125235154 in words is "two hundred thirteen trillion, three hundred forty-four billion, one hundred twenty-five million, two hundred thirty-five thousand, one hundred fifty-four".