311440104021342 has 8 divisors (see below), whose sum is σ = 622880208042696. Its totient is φ = 103813368007112.

The previous prime is 311440104021311. The next prime is 311440104021443. The reversal of 311440104021342 is 243120401044113.

It is a happy number.

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

311440104021342 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25953342001773 + ... + 25953342001784.

It is an arithmetic number, because the mean of its divisors is an integer number (77860026005337).

Almost surely, 2^{311440104021342} is an apocalyptic number.

311440104021342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

311440104021342 is a wasteful number, since it uses less digits than its factorization.

311440104021342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51906684003562.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 311440104021342 its reverse (243120401044113), we get a palindrome (554560505065455).

The spelling of 311440104021342 in words is "three hundred eleven trillion, four hundred forty billion, one hundred four million, twenty-one thousand, three hundred forty-two".