311431310304342 has 32 divisors (see below), whose sum is σ = 623194473683808. Its totient is φ = 103755141106176.

The previous prime is 311431310304341. The next prime is 311431310304343. The reversal of 311431310304342 is 243403013134113.

It is an interprime number because it is at equal distance from previous prime (311431310304341) and next prime (311431310304343).

It is a super-2 number, since 2×311431310304342² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311431310304341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93086068 + ... + 96373640.

It is an arithmetic number, because the mean of its divisors is an integer number (19474827302619).

Almost surely, 2^{311431310304342} is an apocalyptic number.

311431310304342 is an abundant number, since it is smaller than the sum of its proper divisors (311763163379466).

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

311431310304342 is a wasteful number, since it uses less digits than its factorization.

311431310304342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295984.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 311431310304342 its reverse (243403013134113), we get a palindrome (554834323438455).

The spelling of 311431310304342 in words is "three hundred eleven trillion, four hundred thirty-one billion, three hundred ten million, three hundred four thousand, three hundred forty-two".