11311110121 has 8 divisors (see below), whose sum is σ = 11399862240. Its totient is φ = 11222702112.

The previous prime is 11311110043. The next prime is 11311110137. The reversal of 11311110121 is 12101111311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11311110121 - 2¹⁷ = 11310979049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311110221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19831 + ... + 151708.

It is an arithmetic number, because the mean of its divisors is an integer number (1424982780).

Almost surely, 2^11311110121 is an apocalyptic number.

It is an amenable number.

11311110121 is a deficient number, since it is larger than the sum of its proper divisors (88752119).

11311110121 is a wasteful number, since it uses less digits than its factorization.

11311110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172055.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 11311110121 its reverse (12101111311), we get a palindrome (23412221432).

The spelling of 11311110121 in words is "eleven billion, three hundred eleven million, one hundred ten thousand, one hundred twenty-one".