311431311034412 has 12 divisors (see below), whose sum is σ = 545036248508640. Its totient is φ = 155706668603376.

The previous prime is 311431311034411. The next prime is 311431311034427. The reversal of 311431311034412 is 214430113134113.

It is a happy number.

It is a super-2 number, since 2×311431311034412² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311431311034411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2246650487 + ... + 2246789102.

It is an arithmetic number, because the mean of its divisors is an integer number (45419687375720).

Almost surely, 2^{311431311034412} is an apocalyptic number.

It is an amenable number.

311431311034412 is a deficient number, since it is larger than the sum of its proper divisors (233604937474228).

311431311034412 is a wasteful number, since it uses less digits than its factorization.

311431311034412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493456920 (or 4493456918 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 311431311034412 its reverse (214430113134113), we get a palindrome (525861424168525).

The spelling of 311431311034412 in words is "three hundred eleven trillion, four hundred thirty-one billion, three hundred eleven million, thirty-four thousand, four hundred twelve".