1344011232521 has 4 divisors (see below), whose sum is σ = 1346069443332. Its totient is φ = 1341953021712.

The previous prime is 1344011232481. The next prime is 1344011232533. The reversal of 1344011232521 is 1252321104431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 400511779600 + 943499452921 = 632860^2 + 971339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344011232521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344011232821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029104426 + ... + 1029105731.

It is an arithmetic number, because the mean of its divisors is an integer number (336517360833).

Almost surely, 2^{1344011232521} is an apocalyptic number.

It is an amenable number.

1344011232521 is a deficient number, since it is larger than the sum of its proper divisors (2058210811).

1344011232521 is an equidigital number, since it uses as much as digits as its factorization.

1344011232521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058210810.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1344011232521 its reverse (1252321104431), we get a palindrome (2596332336952).

The spelling of 1344011232521 in words is "one trillion, three hundred forty-four billion, eleven million, two hundred thirty-two thousand, five hundred twenty-one".