340231210224021 has 32 divisors (see below), whose sum is σ = 533708005605120. Its totient is φ = 213473610588672.

The previous prime is 340231210224013. The next prime is 340231210224091. The reversal of 340231210224021 is 120422012132043.

340231210224021 is a `hidden beast` number, since 3 + 4 + 0 + 2 + 312 + 102 + 240 + 2 + 1 = 666.

It is not a de Polignac number, because 340231210224021 - 2³ = 340231210224013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340231210224091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12182776 + ... + 28790318.

It is an arithmetic number, because the mean of its divisors is an integer number (16678375175160).

Almost surely, 2^{340231210224021} is an apocalyptic number.

It is an amenable number.

340231210224021 is a deficient number, since it is larger than the sum of its proper divisors (193476795381099).

340231210224021 is a wasteful number, since it uses less digits than its factorization.

340231210224021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16652202 (or 16652196 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 340231210224021 its reverse (120422012132043), we get a palindrome (460653222356064).

The spelling of 340231210224021 in words is "three hundred forty trillion, two hundred thirty-one billion, two hundred ten million, two hundred twenty-four thousand, twenty-one".