312111434 has 24 divisors (see below), whose sum is σ = 485513028. Its totient is φ = 150386880.

The previous prime is 312111419. The next prime is 312111451. The reversal of 312111434 is 434111213.

It can be written as a sum of positive squares in 2 ways, for example, as 311628409 + 483025 = 17653^2 + 695^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1584224 + ... + 1584420.

Almost surely, 2^312111434 is an apocalyptic number.

312111434 is a deficient number, since it is larger than the sum of its proper divisors (173401594).

312111434 is a wasteful number, since it uses less digits than its factorization.

312111434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 379 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 312111434 is about 17666.6758050291. The cubic root of 312111434 is about 678.3230260548.

Adding to 312111434 its reverse (434111213), we get a palindrome (746222647).

The spelling of 312111434 in words is "three hundred twelve million, one hundred eleven thousand, four hundred thirty-four".