311440110144021 has 8 divisors (see below), whose sum is σ = 461392755768960. Its totient is φ = 207626740095996.

The previous prime is 311440110144017. The next prime is 311440110144041. The reversal of 311440110144021 is 120441011044113.

311440110144021 is a `hidden beast` number, since 3 + 1 + 144 + 0 + 110 + 1 + 4 + 402 + 1 = 666.

It is not a de Polignac number, because 311440110144021 - 2² = 311440110144017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11534818894223 = 311440110144021 / (3 + 1 + 1 + 4 + 4 + 0 + 1 + 1 + 0 + 1 + 4 + 4 + 0 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311440110144041) 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 7 ways as a sum of consecutive naturals, for example, 5767409447085 + ... + 5767409447138.

It is an arithmetic number, because the mean of its divisors is an integer number (57674094471120).

Almost surely, 2^{311440110144021} is an apocalyptic number.

It is an amenable number.

311440110144021 is a deficient number, since it is larger than the sum of its proper divisors (149952645624939).

311440110144021 is a wasteful number, since it uses less digits than its factorization.

311440110144021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11534818894232 (or 11534818894226 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 311440110144021 its reverse (120441011044113), we get a palindrome (431881121188134).

The spelling of 311440110144021 in words is "three hundred eleven trillion, four hundred forty billion, one hundred ten million, one hundred forty-four thousand, twenty-one".