340431312242413 has 4 divisors (see below), whose sum is σ = 389064356848480. Its totient is φ = 291798267636348.

The previous prime is 340431312242401. The next prime is 340431312242419. The reversal of 340431312242413 is 314242213134043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340431312242413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340431312242419) 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, 24316522303023 + ... + 24316522303036.

It is an arithmetic number, because the mean of its divisors is an integer number (97266089212120).

Almost surely, 2^{340431312242413} is an apocalyptic number.

It is an amenable number.

340431312242413 is a deficient number, since it is larger than the sum of its proper divisors (48633044606067).

340431312242413 is an equidigital number, since it uses as much as digits as its factorization.

340431312242413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48633044606066.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 340431312242413 its reverse (314242213134043), we get a palindrome (654673525376456).

The spelling of 340431312242413 in words is "three hundred forty trillion, four hundred thirty-one billion, three hundred twelve million, two hundred forty-two thousand, four hundred thirteen".