311440104121242 has 16 divisors (see below), whose sum is σ = 622986811120800. Its totient is φ = 103795600894032.

The previous prime is 311440104121241. The next prime is 311440104121249. The reversal of 311440104121242 is 242121401044113.

It is not an unprimeable number, because it can be changed into a prime (311440104121241) 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, 4441748617 + ... + 4441818732.

It is an arithmetic number, because the mean of its divisors is an integer number (38936675695050).

Almost surely, 2^{311440104121242} is an apocalyptic number.

311440104121242 is an abundant number, since it is smaller than the sum of its proper divisors (311546706999558).

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

311440104121242 is a wasteful number, since it uses less digits than its factorization.

311440104121242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8883573197.

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 311440104121242 its reverse (242121401044113), we get a palindrome (553561505165355).

The spelling of 311440104121242 in words is "three hundred eleven trillion, four hundred forty billion, one hundred four million, one hundred twenty-one thousand, two hundred forty-two".