2144321402305 has 16 divisors (see below), whose sum is σ = 2608672731984. Its totient is φ = 1691803376640.

The previous prime is 2144321402303. The next prime is 2144321402323. The reversal of 2144321402305 is 5032041234412.

It can be written as a sum of positive squares in 8 ways, for example, as 5789535921 + 2138531866384 = 76089^2 + 1462372^2 .

It is not a de Polignac number, because 2144321402305 - 2¹ = 2144321402303 is a prime.

It is a super-2 number, since 2×2144321402305² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144321402303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3824565 + ... + 4349245.

It is an arithmetic number, because the mean of its divisors is an integer number (163042045749).

Almost surely, 2^{2144321402305} is an apocalyptic number.

It is an amenable number.

2144321402305 is a deficient number, since it is larger than the sum of its proper divisors (464351329679).

2144321402305 is a wasteful number, since it uses less digits than its factorization.

2144321402305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535956.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 2144321402305 its reverse (5032041234412), we get a palindrome (7176362636717).

The spelling of 2144321402305 in words is "two trillion, one hundred forty-four billion, three hundred twenty-one million, four hundred two thousand, three hundred five".