340122321521 has 8 divisors (see below), whose sum is σ = 351253161984. Its totient is φ = 329001428160.

The previous prime is 340122321499. The next prime is 340122321557. The reversal of 340122321521 is 125123221043.

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

It is a cyclic number.

It is not a de Polignac number, because 340122321521 - 2¹⁴ = 340122305137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340122921521) 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, 2417240 + ... + 2554073.

It is an arithmetic number, because the mean of its divisors is an integer number (43906645248).

Almost surely, 2^340122321521 is an apocalyptic number.

340122321521 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

340122321521 is a deficient number, since it is larger than the sum of its proper divisors (11130840463).

340122321521 is a wasteful number, since it uses less digits than its factorization.

340122321521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973551.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 340122321521 its reverse (125123221043), we get a palindrome (465245542564).

The spelling of 340122321521 in words is "three hundred forty billion, one hundred twenty-two million, three hundred twenty-one thousand, five hundred twenty-one".