2012121341 has 4 divisors (see below), whose sum is σ = 2012433852. Its totient is φ = 2011808832.

The previous prime is 2012121323. The next prime is 2012121367. The reversal of 2012121341 is 1431212102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1431212102 = 2 ⋅715606051.

It can be written as a sum of positive squares in 2 ways, for example, as 1934152441 + 77968900 = 43979^2 + 8830^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012121341 - 2²⁶ = 1945012477 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 (2012121301) 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, 146390 + ... + 159543.

It is an arithmetic number, because the mean of its divisors is an integer number (503108463).

Almost surely, 2^2012121341 is an apocalyptic number.

It is an amenable number.

2012121341 is a deficient number, since it is larger than the sum of its proper divisors (312511).

2012121341 is an equidigital number, since it uses as much as digits as its factorization.

2012121341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312510.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2012121341 is about 44856.6755455640. The cubic root of 2012121341 is about 1262.4612471325.

Adding to 2012121341 its reverse (1431212102), we get a palindrome (3443333443).

The spelling of 2012121341 in words is "two billion, twelve million, one hundred twenty-one thousand, three hundred forty-one".