311431244421412 has 12 divisors (see below), whose sum is σ = 545006844029340. Its totient is φ = 155715003270176.

The previous prime is 311431244421391. The next prime is 311431244421433. The reversal of 311431244421412 is 214124442134113.

It is an interprime number because it is at equal distance from previous prime (311431244421391) and next prime (311431244421433).

It can be written as a sum of positive squares in 2 ways, for example, as 184105657650916 + 127325586770496 = 13568554^2 + 11283864^2 .

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, 153602083 + ... + 155616394.

It is an arithmetic number, because the mean of its divisors is an integer number (45417237002445).

Almost surely, 2^{311431244421412} is an apocalyptic number.

It is an amenable number.

311431244421412 is a deficient number, since it is larger than the sum of its proper divisors (233575599607928).

311431244421412 is a wasteful number, since it uses less digits than its factorization.

311431244421412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309470270 (or 309470268 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

Adding to 311431244421412 its reverse (214124442134113), we get a palindrome (525555686555525).

The spelling of 311431244421412 in words is "three hundred eleven trillion, four hundred thirty-one billion, two hundred forty-four million, four hundred twenty-one thousand, four hundred twelve".