311401440043 has 8 divisors (see below), whose sum is σ = 312984896000. Its totient is φ = 309818170728.

The previous prime is 311401440041. The next prime is 311401440067. The reversal of 311401440043 is 340044104113.

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 311401440043 - 2¹ = 311401440041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311401440041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4343038 + ... + 4414156.

It is an arithmetic number, because the mean of its divisors is an integer number (39123112000).

Almost surely, 2^311401440043 is an apocalyptic number.

311401440043 is a deficient number, since it is larger than the sum of its proper divisors (1583455957).

311401440043 is a wasteful number, since it uses less digits than its factorization.

311401440043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93321.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 311401440043 its reverse (340044104113), we get a palindrome (651445544156).

The spelling of 311401440043 in words is "three hundred eleven billion, four hundred one million, four hundred forty thousand, forty-three".