312111321430 has 16 divisors (see below), whose sum is σ = 561810555504. Its totient is φ = 124842267040.

The previous prime is 312111321409. The next prime is 312111321439. The reversal of 312111321430 is 34123111213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312111321439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368340 + ... + 871720.

It is an arithmetic number, because the mean of its divisors is an integer number (35113159719).

Almost surely, 2^312111321430 is an apocalyptic number.

312111321430 is a deficient number, since it is larger than the sum of its proper divisors (249699234074).

312111321430 is a wasteful number, since it uses less digits than its factorization.

312111321430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565391.

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

Adding to 312111321430 its reverse (34123111213), we get a palindrome (346234432643).

The spelling of 312111321430 in words is "three hundred twelve billion, one hundred eleven million, three hundred twenty-one thousand, four hundred thirty".