340121003125 has 24 divisors (see below), whose sum is σ = 425279545992. Its totient is φ = 271997280000.

The previous prime is 340121003119. The next prime is 340121003129. The reversal of 340121003125 is 521300121043.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 317502948676 + 22618054449 = 563474^2 + 150393^2 .

It is not a de Polignac number, because 340121003125 - 2¹⁹ = 340120478837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340121003096 and 340121003105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340121003129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9209697 + ... + 9246553.

It is an arithmetic number, because the mean of its divisors is an integer number (17719981083).

Almost surely, 2^340121003125 is an apocalyptic number.

It is an amenable number.

340121003125 is a deficient number, since it is larger than the sum of its proper divisors (85158542867).

340121003125 is an frugal number, since it uses more digits than its factorization.

340121003125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39835 (or 39815 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 340121003125 its reverse (521300121043), we get a palindrome (861421124168).

The spelling of 340121003125 in words is "three hundred forty billion, one hundred twenty-one million, three thousand, one hundred twenty-five".