311002101121 has 4 divisors (see below), whose sum is σ = 311056831792. Its totient is φ = 310947370452.

The previous prime is 311002101101. The next prime is 311002101139. The reversal of 311002101121 is 121101200113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121101200113 = 47 ⋅2576621279.

It is a cyclic number.

It is not a de Polignac number, because 311002101121 - 2¹¹ = 311002099073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311002101101) 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 3 ways as a sum of consecutive naturals, for example, 27356811 + ... + 27368176.

It is an arithmetic number, because the mean of its divisors is an integer number (77764207948).

Almost surely, 2^311002101121 is an apocalyptic number.

It is an amenable number.

311002101121 is a deficient number, since it is larger than the sum of its proper divisors (54730671).

311002101121 is an equidigital number, since it uses as much as digits as its factorization.

311002101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54730670.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 311002101121 its reverse (121101200113), we get a palindrome (432103301234).

The spelling of 311002101121 in words is "three hundred eleven billion, two million, one hundred one thousand, one hundred twenty-one".