340213661136423 has 6 divisors (see below), whose sum is σ = 491419732752624. Its totient is φ = 226809107424276.

The previous prime is 340213661136421. The next prime is 340213661136443. The reversal of 340213661136423 is 324631166312043.

340213661136423 is a `hidden beast` number, since 3 + 4 + 0 + 2 + 1 + 3 + 6 + 611 + 3 + 6 + 4 + 23 = 666.

It is not a de Polignac number, because 340213661136423 - 2¹ = 340213661136421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340213661136421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18900758952015 + ... + 18900758952032.

It is an arithmetic number, because the mean of its divisors is an integer number (81903288792104).

Almost surely, 2^{340213661136423} is an apocalyptic number.

340213661136423 is a deficient number, since it is larger than the sum of its proper divisors (151206071616201).

340213661136423 is a wasteful number, since it uses less digits than its factorization.

340213661136423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37801517904053 (or 37801517904050 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

The spelling of 340213661136423 in words is "three hundred forty trillion, two hundred thirteen billion, six hundred sixty-one million, one hundred thirty-six thousand, four hundred twenty-three".