311144109 has 8 divisors (see below), whose sum is σ = 414943680. Its totient is φ = 207386976.

The previous prime is 311144101. The next prime is 311144131. The reversal of 311144109 is 901441113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311144109 - 2³ = 311144101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311144101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16129 + ... + 29705.

It is an arithmetic number, because the mean of its divisors is an integer number (51867960).

Almost surely, 2^311144109 is an apocalyptic number.

It is an amenable number.

311144109 is a deficient number, since it is larger than the sum of its proper divisors (103799571).

311144109 is a wasteful number, since it uses less digits than its factorization.

311144109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21219.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 311144109 is about 17639.2774511883. The cubic root of 311144109 is about 677.6215267444.

The spelling of 311144109 in words is "three hundred eleven million, one hundred forty-four thousand, one hundred nine".