1344211331 has 4 divisors (see below), whose sum is σ = 1344447000. Its totient is φ = 1343975664.

The previous prime is 1344211313. The next prime is 1344211381. The reversal of 1344211331 is 1331124431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344211331 is a prime.

It is a super-2 number, since 2×1344211331² = 3613808204777583122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1344211297 and 1344211306.

It is not an unprimeable number, because it can be changed into a prime (1344211381) 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, 109061 + ... + 120758.

It is an arithmetic number, because the mean of its divisors is an integer number (336111750).

Almost surely, 2^1344211331 is an apocalyptic number.

1344211331 is a deficient number, since it is larger than the sum of its proper divisors (235669).

1344211331 is an equidigital number, since it uses as much as digits as its factorization.

1344211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235668.

The product of its digits is 864, while the sum is 23.

The square root of 1344211331 is about 36663.4877091637. The cubic root of 1344211331 is about 1103.6275094064.

Adding to 1344211331 its reverse (1331124431), we get a palindrome (2675335762).

The spelling of 1344211331 in words is "one billion, three hundred forty-four million, two hundred eleven thousand, three hundred thirty-one".