213452121132 has 30 divisors (see below), whose sum is σ = 558006008868. Its totient is φ = 71150706936.

The previous prime is 213452121109. The next prime is 213452121133. The reversal of 213452121132 is 231121254312.

It is a happy number.

213452121132 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 521 + 2 + 1 + 132 = 666.

213452121132 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213452121132² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 213452121096 and 213452121105.

It is not an unprimeable number, because it can be changed into a prime (213452121133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 329401098 + ... + 329401745.

Almost surely, 2^213452121132 is an apocalyptic number.

It is an amenable number.

213452121132 is an abundant number, since it is smaller than the sum of its proper divisors (344553887736).

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

213452121132 is a wasteful number, since it uses less digits than its factorization.

213452121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658802859 (or 658802848 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 213452121132 its reverse (231121254312), we get a palindrome (444573375444).

The spelling of 213452121132 in words is "two hundred thirteen billion, four hundred fifty-two million, one hundred twenty-one thousand, one hundred thirty-two".