213106605012 has 108 divisors (see below), whose sum is σ = 632384412660. Its totient is φ = 60328945152.

The previous prime is 213106605011. The next prime is 213106605013. The reversal of 213106605012 is 210506601312.

213106605012 is a `hidden beast` number, since 21 + 31 + 0 + 6 + 605 + 0 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (213106605011) and next prime (213106605013).

It can be written as a sum of positive squares in 2 ways, for example, as 61259220036 + 151847384976 = 247506^2 + 389676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213106605011) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 361893 + ... + 746444.

Almost surely, 2^213106605012 is an apocalyptic number.

It is an amenable number.

213106605012 is an abundant number, since it is smaller than the sum of its proper divisors (419277807648).

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

213106605012 is a wasteful number, since it uses less digits than its factorization.

213106605012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108470 (or 1108458 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 213106605012 in words is "two hundred thirteen billion, one hundred six million, six hundred five thousand, twelve".