1443020013 has 6 divisors (see below), whose sum is σ = 2084362254. Its totient is φ = 962013336.

The previous prime is 1443020003. The next prime is 1443020039. The reversal of 1443020013 is 3100203441.

1443020013 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1434742884 + 8277129 = 37878^2 + 2877^2 .

It is not a de Polignac number, because 1443020013 - 2¹⁶ = 1442954477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443020003) 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, 80167770 + ... + 80167787.

It is an arithmetic number, because the mean of its divisors is an integer number (347393709).

Almost surely, 2^1443020013 is an apocalyptic number.

It is an amenable number.

1443020013 is a deficient number, since it is larger than the sum of its proper divisors (641342241).

1443020013 is a wasteful number, since it uses less digits than its factorization.

1443020013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160335563 (or 160335560 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1443020013 is about 37987.1032457070. The cubic root of 1443020013 is about 1130.0321114951.

Adding to 1443020013 its reverse (3100203441), we get a palindrome (4543223454).

It can be divided in two parts, 14430 and 20013, that added together give a palindrome (34443).

The spelling of 1443020013 in words is "one billion, four hundred forty-three million, twenty thousand, thirteen".