311113121101 has 4 divisors (see below), whose sum is σ = 311114875104. Its totient is φ = 311111367100.

The previous prime is 311113121089. The next prime is 311113121147. The reversal of 311113121101 is 101121311113.

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: 101121311113 = 383 ⋅264024311.

It is a cyclic number.

It is not a de Polignac number, because 311113121101 - 2²³ = 311104732493 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 (311113121171) 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, 576655 + ... + 977116.

It is an arithmetic number, because the mean of its divisors is an integer number (77778718776).

Almost surely, 2^311113121101 is an apocalyptic number.

It is an amenable number.

311113121101 is a deficient number, since it is larger than the sum of its proper divisors (1754003).

311113121101 is a wasteful number, since it uses less digits than its factorization.

311113121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754002.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 311113121101 its reverse (101121311113), we get a palindrome (412234432214).

The spelling of 311113121101 in words is "three hundred eleven billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred one".