340121545242 has 16 divisors (see below), whose sum is σ = 681158635200. Its totient is φ = 113221257632.

The previous prime is 340121545217. The next prime is 340121545243. The reversal of 340121545242 is 242545121043.

It is not an unprimeable number, because it can be changed into a prime (340121545243) 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 7 ways as a sum of consecutive naturals, for example, 38142867 + ... + 38151782.

It is an arithmetic number, because the mean of its divisors is an integer number (42572414700).

Almost surely, 2^340121545242 is an apocalyptic number.

340121545242 is an abundant number, since it is smaller than the sum of its proper divisors (341037089958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340121545242 is a wasteful number, since it uses less digits than its factorization.

340121545242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76295397.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 340121545242 its reverse (242545121043), we get a palindrome (582666666285).

The spelling of 340121545242 in words is "three hundred forty billion, one hundred twenty-one million, five hundred forty-five thousand, two hundred forty-two".