2011354452021 has 8 divisors (see below), whose sum is σ = 2681975102560. Its totient is φ = 1340818384752.

The previous prime is 2011354451993. The next prime is 2011354452031. The reversal of 2011354452021 is 1202544531102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2011354452021 - 2¹⁵ = 2011354419253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011354452021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011354452031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21090310 + ... + 21185463.

It is an arithmetic number, because the mean of its divisors is an integer number (335246887820).

Almost surely, 2^{2011354452021} is an apocalyptic number.

It is an amenable number.

2011354452021 is a deficient number, since it is larger than the sum of its proper divisors (670620650539).

2011354452021 is a wasteful number, since it uses less digits than its factorization.

2011354452021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42291635.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 2011354452021 its reverse (1202544531102), we get a palindrome (3213898983123).

The spelling of 2011354452021 in words is "two trillion, eleven billion, three hundred fifty-four million, four hundred fifty-two thousand, twenty-one".