311122001101 has 4 divisors (see below), whose sum is σ = 311130229312. Its totient is φ = 311113772892.

The previous prime is 311122001093. The next prime is 311122001147. The reversal of 311122001101 is 101100221113.

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: 101100221113 = 14813 ⋅6825101.

It is a cyclic number.

It is not a de Polignac number, because 311122001101 - 2³ = 311122001093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311122041101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4057125 + ... + 4133098.

It is an arithmetic number, because the mean of its divisors is an integer number (77782557328).

Almost surely, 2^311122001101 is an apocalyptic number.

It is an amenable number.

311122001101 is a deficient number, since it is larger than the sum of its proper divisors (8228211).

311122001101 is an equidigital number, since it uses as much as digits as its factorization.

311122001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8228210.

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

Adding to 311122001101 its reverse (101100221113), we get a palindrome (412222222214).

The spelling of 311122001101 in words is "three hundred eleven billion, one hundred twenty-two million, one thousand, one hundred one".