311214430 has 32 divisors (see below), whose sum is σ = 568469664. Its totient is φ = 122658816.

The previous prime is 311214419. The next prime is 311214451. The reversal of 311214430 is 34412113.

It is a junction number, because it is equal to n+sod(n) for n = 311214398 and 311214407.

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 15 ways as a sum of consecutive naturals, for example, 217377 + ... + 218803.

It is an arithmetic number, because the mean of its divisors is an integer number (17764677).

Almost surely, 2^311214430 is an apocalyptic number.

311214430 is a deficient number, since it is larger than the sum of its proper divisors (257255234).

311214430 is a wasteful number, since it uses less digits than its factorization.

311214430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 311214430 is about 17641.2706458463. The cubic root of 311214430 is about 677.6725721525.

Adding to 311214430 its reverse (34412113), we get a palindrome (345626543).

It can be divided in two parts, 31 and 1214430, that added together give a triangular number (1214461 = T₁₅₅₈).

The spelling of 311214430 in words is "three hundred eleven million, two hundred fourteen thousand, four hundred thirty".