2144020011 has 32 divisors (see below), whose sum is σ = 3367515648. Its totient is φ = 1187861760.

The previous prime is 2144020007. The next prime is 2144020013. The reversal of 2144020011 is 1100204412.

It is not a de Polignac number, because 2144020011 - 2² = 2144020007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2144020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132705 + ... + 147981.

It is an arithmetic number, because the mean of its divisors is an integer number (105234864).

Almost surely, 2^2144020011 is an apocalyptic number.

2144020011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2144020011 is a deficient number, since it is larger than the sum of its proper divisors (1223495637).

2144020011 is a wasteful number, since it uses less digits than its factorization.

2144020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15491.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2144020011 is about 46303.5636965450. The cubic root of 2144020011 is about 1289.4651571646.

Adding to 2144020011 its reverse (1100204412), we get a palindrome (3244224423).

The spelling of 2144020011 in words is "two billion, one hundred forty-four million, twenty thousand, eleven".