1340343444331 has 8 divisors (see below), whose sum is σ = 1383616916864. Its totient is φ = 1297072258560.

The previous prime is 1340343444283. The next prime is 1340343444343. The reversal of 1340343444331 is 1334443430431.

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 1340343444331 - 2²⁹ = 1339806573419 is a prime.

It is a super-2 number, since 2×1340343444331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340343444031) 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, 661771 + ... + 1765963.

It is an arithmetic number, because the mean of its divisors is an integer number (172952114608).

Almost surely, 2^{1340343444331} is an apocalyptic number.

1340343444331 is a deficient number, since it is larger than the sum of its proper divisors (43273472533).

1340343444331 is a wasteful number, since it uses less digits than its factorization.

1340343444331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143381.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 1340343444331 its reverse (1334443430431), we get a palindrome (2674786874762).

The spelling of 1340343444331 in words is "one trillion, three hundred forty billion, three hundred forty-three million, four hundred forty-four thousand, three hundred thirty-one".