1234440212013 has 12 divisors (see below), whose sum is σ = 1790733014460. Its totient is φ = 819428122176.

The previous prime is 1234440211957. The next prime is 1234440212021. The reversal of 1234440212013 is 3102120444321.

1234440212013 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 440 + 212 + 0 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 86152229289 + 1148287982724 = 293517^2 + 1071582^2 .

It is not a de Polignac number, because 1234440212013 - 2⁸ = 1234440211757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234440212513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294332718 + ... + 294336911.

It is an arithmetic number, because the mean of its divisors is an integer number (149227751205).

Almost surely, 2^{1234440212013} is an apocalyptic number.

It is an amenable number.

1234440212013 is a deficient number, since it is larger than the sum of its proper divisors (556292802447).

1234440212013 is a wasteful number, since it uses less digits than its factorization.

1234440212013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588669868 (or 588669865 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1234440212013 its reverse (3102120444321), we get a palindrome (4336560656334).

The spelling of 1234440212013 in words is "one trillion, two hundred thirty-four billion, four hundred forty million, two hundred twelve thousand, thirteen".