2311200021 has 8 divisors (see below), whose sum is σ = 3318646240. Its totient is φ = 1422276912.

The previous prime is 2311199999. The next prime is 2311200029. The reversal of 2311200021 is 1200021132.

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

It is not a de Polignac number, because 2311200021 - 2¹⁹ = 2310675733 is a prime.

It is a super-3 number, since 3×2311200021³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311200029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29630731 + ... + 29630808.

It is an arithmetic number, because the mean of its divisors is an integer number (414830780).

Almost surely, 2^2311200021 is an apocalyptic number.

It is an amenable number.

2311200021 is a deficient number, since it is larger than the sum of its proper divisors (1007446219).

2311200021 is a wasteful number, since it uses less digits than its factorization.

2311200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59261555.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2311200021 is about 48074.9417160333. The cubic root of 2311200021 is about 1322.1452759374.

Adding to 2311200021 its reverse (1200021132), we get a palindrome (3511221153).

The spelling of 2311200021 in words is "two billion, three hundred eleven million, two hundred thousand, twenty-one".