311616423 has 16 divisors (see below), whose sum is σ = 464329440. Its totient is φ = 206540352.

The previous prime is 311616379. The next prime is 311616451. The reversal of 311616423 is 324616113.

311616423 is a `hidden beast` number, since 3 + 1 + 1 + 616 + 42 + 3 = 666.

It is not a de Polignac number, because 311616423 - 2⁹ = 311615911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311616463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28686 + ... + 38027.

It is an arithmetic number, because the mean of its divisors is an integer number (29020590).

Almost surely, 2^311616423 is an apocalyptic number.

311616423 is a deficient number, since it is larger than the sum of its proper divisors (152713017).

311616423 is a wasteful number, since it uses less digits than its factorization.

311616423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66895 (or 66889 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 311616423 is about 17652.6605076968. The cubic root of 311616423 is about 677.9642278879.

The spelling of 311616423 in words is "three hundred eleven million, six hundred sixteen thousand, four hundred twenty-three".