2013011331444 has 18 divisors (see below), whose sum is σ = 5088445310130. Its totient is φ = 671003777136.

The previous prime is 2013011331427. The next prime is 2013011331449. The reversal of 2013011331444 is 4441331103102.

2013011331444 is a `hidden beast` number, since 2 + 0 + 1 + 301 + 1 + 3 + 314 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1244478575844 + 768532755600 = 1115562^2 + 876660^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013011331449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27958490679 + ... + 27958490750.

Almost surely, 2^{2013011331444} is an apocalyptic number.

It is an amenable number.

2013011331444 is an abundant number, since it is smaller than the sum of its proper divisors (3075433978686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2013011331444 is a wasteful number, since it uses less digits than its factorization.

2013011331444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55916981439 (or 55916981434 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 2013011331444 its reverse (4441331103102), we get a palindrome (6454342434546).

The spelling of 2013011331444 in words is "two trillion, thirteen billion, eleven million, three hundred thirty-one thousand, four hundred forty-four".