213512210243106 has 32 divisors (see below), whose sum is σ = 427947170669568. Its totient is φ = 71017058768640.

The previous prime is 213512210243063. The next prime is 213512210243149. The reversal of 213512210243106 is 601342012215312.

It is an interprime number because it is at equal distance from previous prime (213512210243063) and next prime (213512210243149).

It is a super-3 number, since 3×213512210243106³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6702481 + ... + 21724356.

It is an arithmetic number, because the mean of its divisors is an integer number (13373349083424).

Almost surely, 2^{213512210243106} is an apocalyptic number.

213512210243106 is an abundant number, since it is smaller than the sum of its proper divisors (214434960426462).

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

213512210243106 is a wasteful number, since it uses less digits than its factorization.

213512210243106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28429546.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 213512210243106 its reverse (601342012215312), we get a palindrome (814854222458418).

The spelling of 213512210243106 in words is "two hundred thirteen trillion, five hundred twelve billion, two hundred ten million, two hundred forty-three thousand, one hundred six".