312111304430 has 16 divisors (see below), whose sum is σ = 563201353584. Its totient is φ = 124533187200.

The previous prime is 312111304411. The next prime is 312111304501. The reversal of 312111304430 is 34403111213.

It is a super-2 number, since 2×312111304430² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312111304396 and 312111304405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38912612 + ... + 38920631.

It is an arithmetic number, because the mean of its divisors is an integer number (35200084599).

Almost surely, 2^312111304430 is an apocalyptic number.

312111304430 is a deficient number, since it is larger than the sum of its proper divisors (251090049154).

312111304430 is a wasteful number, since it uses less digits than its factorization.

312111304430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77833651.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 312111304430 its reverse (34403111213), we get a palindrome (346514415643).

The spelling of 312111304430 in words is "three hundred twelve billion, one hundred eleven million, three hundred four thousand, four hundred thirty".