311440042401041 has 4 divisors (see below), whose sum is σ = 311481167463732. Its totient is φ = 311398917338352.

The previous prime is 311440042401023. The next prime is 311440042401067. The reversal of 311440042401041 is 140104240044113.

It is a happy number.

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 283320566672641 + 28119475728400 = 16832129^2 + 5302780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311440042401041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311440042400995 and 311440042401013.

It is not an unprimeable number, because it can be changed into a prime (311440042401001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20562519986 + ... + 20562535131.

It is an arithmetic number, because the mean of its divisors is an integer number (77870291865933).

Almost surely, 2^{311440042401041} is an apocalyptic number.

It is an amenable number.

311440042401041 is a deficient number, since it is larger than the sum of its proper divisors (41125062691).

311440042401041 is an equidigital number, since it uses as much as digits as its factorization.

311440042401041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41125062690.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 311440042401041 its reverse (140104240044113), we get a palindrome (451544282445154).

The spelling of 311440042401041 in words is "three hundred eleven trillion, four hundred forty billion, forty-two million, four hundred one thousand, forty-one".