212013111113 has 4 divisors (see below), whose sum is σ = 212014998288. Its totient is φ = 212011223940.

The previous prime is 212013111077. The next prime is 212013111137. The reversal of 212013111113 is 311111310212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212013111113 - 2⁸ = 212013110857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212013111091 and 212013111100.

It is not an unprimeable number, because it can be changed into a prime (212013111613) 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, 763631 + ... + 1003572.

It is an arithmetic number, because the mean of its divisors is an integer number (53003749572).

Almost surely, 2^212013111113 is an apocalyptic number.

It is an amenable number.

212013111113 is a deficient number, since it is larger than the sum of its proper divisors (1887175).

212013111113 is a wasteful number, since it uses less digits than its factorization.

212013111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887174.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 212013111113 its reverse (311111310212), we get a palindrome (523124421325).

The spelling of 212013111113 in words is "two hundred twelve billion, thirteen million, one hundred eleven thousand, one hundred thirteen".