212030120311 has 12 divisors (see below), whose sum is σ = 221173552600. Its totient is φ = 203245828128.

The previous prime is 212030120213. The next prime is 212030120321. The reversal of 212030120311 is 113021030212.

It is not a de Polignac number, because 212030120311 - 2¹¹ = 212030118263 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 (212030120321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789996 + ... + 1023793.

Almost surely, 2^212030120311 is an apocalyptic number.

212030120311 is a deficient number, since it is larger than the sum of its proper divisors (9143432289).

212030120311 is a wasteful number, since it uses less digits than its factorization.

212030120311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813986 (or 1813957 counting only the distinct ones).

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

Adding to 212030120311 its reverse (113021030212), we get a palindrome (325051150523).

Subtracting from 212030120311 its reverse (113021030212), we obtain a palindrome (99009090099).

The spelling of 212030120311 in words is "two hundred twelve billion, thirty million, one hundred twenty thousand, three hundred eleven".