212030012311 has 16 divisors (see below), whose sum is σ = 229023194400. Its totient is φ = 195134859648.

The previous prime is 212030012309. The next prime is 212030012371. The reversal of 212030012311 is 113210030212.

It is a cyclic number.

It is not a de Polignac number, because 212030012311 - 2¹ = 212030012309 is a prime.

It is a super-2 number, since 2×212030012311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212030012371) 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, 14339320 + ... + 14354098.

It is an arithmetic number, because the mean of its divisors is an integer number (14313949650).

Almost surely, 2^212030012311 is an apocalyptic number.

212030012311 is a deficient number, since it is larger than the sum of its proper divisors (16993182089).

212030012311 is a wasteful number, since it uses less digits than its factorization.

212030012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18018.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 212030012311 its reverse (113210030212), we get a palindrome (325240042523).

The spelling of 212030012311 in words is "two hundred twelve billion, thirty million, twelve thousand, three hundred eleven".