321240100243242 has 16 divisors (see below), whose sum is σ = 642651027492672. Its totient is φ = 107051562246720.

The previous prime is 321240100243189. The next prime is 321240100243261. The reversal of 321240100243242 is 242342001042123.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7117767478 + ... + 7117812609.

It is an arithmetic number, because the mean of its divisors is an integer number (40165689218292).

Almost surely, 2^{321240100243242} is an apocalyptic number.

321240100243242 is an abundant number, since it is smaller than the sum of its proper divisors (321410927249430).

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

321240100243242 is a wasteful number, since it uses less digits than its factorization.

321240100243242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14235583853.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 321240100243242 its reverse (242342001042123), we get a palindrome (563582101285365).

The spelling of 321240100243242 in words is "three hundred twenty-one trillion, two hundred forty billion, one hundred million, two hundred forty-three thousand, two hundred forty-two".