212106105311 has 16 divisors (see below), whose sum is σ = 220067020800. Its totient is φ = 204321275808.

The previous prime is 212106105307. The next prime is 212106105319. The reversal of 212106105311 is 113501601212.

It is a cyclic number.

It is not a de Polignac number, because 212106105311 - 2² = 212106105307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212106105319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607970 + ... + 890976.

It is an arithmetic number, because the mean of its divisors is an integer number (13754188800).

Almost surely, 2^212106105311 is an apocalyptic number.

212106105311 is a deficient number, since it is larger than the sum of its proper divisors (7960915489).

212106105311 is a wasteful number, since it uses less digits than its factorization.

212106105311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283318.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 212106105311 its reverse (113501601212), we get a palindrome (325607706523).

The spelling of 212106105311 in words is "two hundred twelve billion, one hundred six million, one hundred five thousand, three hundred eleven".