340421868124043 has 4 divisors (see below), whose sum is σ = 340447980115920. Its totient is φ = 340395756132168.

The previous prime is 340421868124031. The next prime is 340421868124133.

340421868124043 is nontrivially palindromic in base 10.

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-340421868124043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340421868123982 and 340421868124000.

It is not an unprimeable number, because it can be changed into a prime (340421868124543) 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, 13055976383 + ... + 13056002456.

It is an arithmetic number, because the mean of its divisors is an integer number (85111995028980).

Almost surely, 2^{340421868124043} is an apocalyptic number.

340421868124043 is a deficient number, since it is larger than the sum of its proper divisors (26111991877).

340421868124043 is a wasteful number, since it uses less digits than its factorization.

340421868124043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26111991876.

The product of its (nonzero) digits is 3538944, while the sum is 50.

The spelling of 340421868124043 in words is "three hundred forty trillion, four hundred twenty-one billion, eight hundred sixty-eight million, one hundred twenty-four thousand, forty-three".