1231441013 has 8 divisors (see below), whose sum is σ = 1344077280. Its totient is φ = 1118919280.

The previous prime is 1231440929. The next prime is 1231441033. The reversal of 1231441013 is 3101441321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231441013 - 2¹² = 1231436917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231441033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5318 + ... + 49911.

It is an arithmetic number, because the mean of its divisors is an integer number (168009660).

Almost surely, 2^1231441013 is an apocalyptic number.

It is an amenable number.

1231441013 is a deficient number, since it is larger than the sum of its proper divisors (112636267).

1231441013 is a wasteful number, since it uses less digits than its factorization.

1231441013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57267.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1231441013 is about 35091.8938360414. The cubic root of 1231441013 is about 1071.8595239578.

Adding to 1231441013 its reverse (3101441321), we get a palindrome (4332882334).

It can be divided in two parts, 1231 and 441013, that added together give a palindrome (442244).

The spelling of 1231441013 in words is "one billion, two hundred thirty-one million, four hundred forty-one thousand, thirteen".