311431003001212 has 6 divisors (see below), whose sum is σ = 545004255252128. Its totient is φ = 155715501500604.

The previous prime is 311431003001207. The next prime is 311431003001227. The reversal of 311431003001212 is 212100300134113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38928875375148 + ... + 38928875375155.

Almost surely, 2^{311431003001212} is an apocalyptic number.

It is an amenable number.

311431003001212 is a deficient number, since it is larger than the sum of its proper divisors (233573252250916).

311431003001212 is a wasteful number, since it uses less digits than its factorization.

311431003001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77857750750307 (or 77857750750305 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 311431003001212 its reverse (212100300134113), we get a palindrome (523531303135325).

The spelling of 311431003001212 in words is "three hundred eleven trillion, four hundred thirty-one billion, three million, one thousand, two hundred twelve".