311430041 has 4 divisors (see below), whose sum is σ = 335386212. Its totient is φ = 287473872.

The previous prime is 311430023. The next prime is 311430047. The reversal of 311430041 is 140034113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21715600 + 289714441 = 4660^2 + 17021^2 .

It is a cyclic number.

It is not a de Polignac number, because 311430041 - 2¹⁴ = 311413657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (311430047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11978066 + ... + 11978091.

It is an arithmetic number, because the mean of its divisors is an integer number (83846553).

Almost surely, 2^311430041 is an apocalyptic number.

It is an amenable number.

311430041 is a deficient number, since it is larger than the sum of its proper divisors (23956171).

311430041 is a wasteful number, since it uses less digits than its factorization.

311430041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23956170.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 311430041 is about 17647.3805704983. The cubic root of 311430041 is about 677.8290344039.

Adding to 311430041 its reverse (140034113), we get a palindrome (451464154).

The spelling of 311430041 in words is "three hundred eleven million, four hundred thirty thousand, forty-one".