213012312103111 has 4 divisors (see below), whose sum is σ = 213012341461224. Its totient is φ = 213012282745000.

The previous prime is 213012312103051. The next prime is 213012312103117. The reversal of 213012312103111 is 111301213210312.

213012312103111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 213012312103111 - 2¹⁷ = 213012311972039 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 (213012312103117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4985736 + ... + 21233986.

It is an arithmetic number, because the mean of its divisors is an integer number (53253085365306).

Almost surely, 2^{213012312103111} is an apocalyptic number.

213012312103111 is a deficient number, since it is larger than the sum of its proper divisors (29358113).

213012312103111 is a wasteful number, since it uses less digits than its factorization.

213012312103111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29358112.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 213012312103111 its reverse (111301213210312), we get a palindrome (324313525313423).

The spelling of 213012312103111 in words is "two hundred thirteen trillion, twelve billion, three hundred twelve million, one hundred three thousand, one hundred eleven".