311377061 has 8 divisors (see below), whose sum is σ = 319951104. Its totient is φ = 302863680.

The previous prime is 311377057. The next prime is 311377063. The reversal of 311377061 is 160773113.

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 311377061 - 2² = 311377057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311377063) 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, 4661 + ... + 25386.

It is an arithmetic number, because the mean of its divisors is an integer number (39993888).

Almost surely, 2^311377061 is an apocalyptic number.

It is an amenable number.

311377061 is a deficient number, since it is larger than the sum of its proper divisors (8574043).

311377061 is a wasteful number, since it uses less digits than its factorization.

311377061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30331.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 311377061 is about 17645.8794340209. The cubic root of 311377061 is about 677.7905951461.

The spelling of 311377061 in words is "three hundred eleven million, three hundred seventy-seven thousand, sixty-one".