2011341021 has 4 divisors (see below), whose sum is σ = 2681788032. Its totient is φ = 1340894012.

The previous prime is 2011340963. The next prime is 2011341071. The reversal of 2011341021 is 1201431102.

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 2011341021 - 2²¹ = 2009243869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011341071) 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, 335223501 + ... + 335223506.

It is an arithmetic number, because the mean of its divisors is an integer number (670447008).

Almost surely, 2^2011341021 is an apocalyptic number.

It is an amenable number.

2011341021 is a deficient number, since it is larger than the sum of its proper divisors (670447011).

2011341021 is an equidigital number, since it uses as much as digits as its factorization.

2011341021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670447010.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2011341021 is about 44847.9767771078. The cubic root of 2011341021 is about 1262.2980278285.

Adding to 2011341021 its reverse (1201431102), we get a palindrome (3212772123).

The spelling of 2011341021 in words is "two billion, eleven million, three hundred forty-one thousand, twenty-one".