340000421321 has 8 divisors (see below), whose sum is σ = 370929780000. Its totient is φ = 309074434240.

The previous prime is 340000421309. The next prime is 340000421357. The reversal of 340000421321 is 123124000043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340000421321 - 2³⁸ = 65122514377 is a prime.

It is a super-2 number, since 2×340000421321² (a number of 24 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 = 340000421293 and 340000421302.

It is not an unprimeable number, because it can be changed into a prime (340000421381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629696 + ... + 1037553.

It is an arithmetic number, because the mean of its divisors is an integer number (46366222500).

Almost surely, 2^340000421321 is an apocalyptic number.

It is an amenable number.

340000421321 is a deficient number, since it is larger than the sum of its proper divisors (30929358679).

340000421321 is a wasteful number, since it uses less digits than its factorization.

340000421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685799.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 340000421321 its reverse (123124000043), we get a palindrome (463124421364).

The spelling of 340000421321 in words is "three hundred forty billion, four hundred twenty-one thousand, three hundred twenty-one".