1340341403231 has 4 divisors (see below), whose sum is σ = 1340385958512. Its totient is φ = 1340296847952.

The previous prime is 1340341403183. The next prime is 1340341403251. The reversal of 1340341403231 is 1323041430431.

It is a happy number.

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-1340341403231 is a prime.

It is a super-2 number, since 2×1340341403231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340341403194 and 1340341403203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340341403251) 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, 22232486 + ... + 22292691.

It is an arithmetic number, because the mean of its divisors is an integer number (335096489628).

Almost surely, 2^{1340341403231} is an apocalyptic number.

1340341403231 is a deficient number, since it is larger than the sum of its proper divisors (44555281).

1340341403231 is an equidigital number, since it uses as much as digits as its factorization.

1340341403231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44555280.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1340341403231 its reverse (1323041430431), we get a palindrome (2663382833662).

The spelling of 1340341403231 in words is "one trillion, three hundred forty billion, three hundred forty-one million, four hundred three thousand, two hundred thirty-one".