311144423 has 8 divisors (see below), whose sum is σ = 316857600. Its totient is φ = 305475768.

The previous prime is 311144419. The next prime is 311144429. The reversal of 311144423 is 324441113.

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

It is a cyclic number.

It is not a de Polignac number, because 311144423 - 2² = 311144419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311144429) 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, 3140 + ... + 25142.

It is an arithmetic number, because the mean of its divisors is an integer number (39607200).

Almost surely, 2^311144423 is an apocalyptic number.

311144423 is a deficient number, since it is larger than the sum of its proper divisors (5713177).

311144423 is a wasteful number, since it uses less digits than its factorization.

311144423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22261.

The product of its digits is 1152, while the sum is 23.

The square root of 311144423 is about 17639.2863517774. The cubic root of 311144423 is about 677.6217546914.

Adding to 311144423 its reverse (324441113), we get a palindrome (635585536).

The spelling of 311144423 in words is "three hundred eleven million, one hundred forty-four thousand, four hundred twenty-three".