2031212011 has 4 divisors (see below), whose sum is σ = 2031592672. Its totient is φ = 2030831352.

The previous prime is 2031212009. The next prime is 2031212017. The reversal of 2031212011 is 1102121302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2031212011 - 2¹ = 2031212009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031211982 and 2031212000.

It is not an unprimeable number, because it can be changed into a prime (2031212017) 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, 182211 + ... + 193036.

It is an arithmetic number, because the mean of its divisors is an integer number (507898168).

Almost surely, 2^2031212011 is an apocalyptic number.

2031212011 is a deficient number, since it is larger than the sum of its proper divisors (380661).

2031212011 is an equidigital number, since it uses as much as digits as its factorization.

2031212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380660.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2031212011 is about 45068.9694912142. The cubic root of 2031212011 is about 1266.4413595644.

Adding to 2031212011 its reverse (1102121302), we get a palindrome (3133333313).

It can be divided in two parts, 20312 and 12011, that added together give a palindrome (32323).

The spelling of 2031212011 in words is "two billion, thirty-one million, two hundred twelve thousand, eleven".