212123011133113 has 32 divisors (see below), whose sum is σ = 229582376179200. Its totient is φ = 195569083632384.

The previous prime is 212123011133029. The next prime is 212123011133147. The reversal of 212123011133113 is 311331110321212.

It is a de Polignac number, because none of the positive numbers 2^k-212123011133113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212123011130113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13854256 + ... + 24823102.

It is an arithmetic number, because the mean of its divisors is an integer number (7174449255600).

Almost surely, 2^{212123011133113} is an apocalyptic number.

It is an amenable number.

212123011133113 is a deficient number, since it is larger than the sum of its proper divisors (17459365046087).

212123011133113 is a wasteful number, since it uses less digits than its factorization.

212123011133113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10969249.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 212123011133113 its reverse (311331110321212), we get a palindrome (523454121454325).

The spelling of 212123011133113 in words is "two hundred twelve trillion, one hundred twenty-three billion, eleven million, one hundred thirty-three thousand, one hundred thirteen".