121112311333311 has 16 divisors (see below), whose sum is σ = 179425913356800. Its totient is φ = 80741420767224.

The previous prime is 121112311333259. The next prime is 121112311333327. The reversal of 121112311333311 is 113333113211121.

121112311333311 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 1 + 2 + 3 + 11 + 333 + 311 = 666.

It is not a de Polignac number, because 121112311333311 - 2¹³ = 121112311325119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112311133311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17517610 + ... + 23432696.

It is an arithmetic number, because the mean of its divisors is an integer number (11214119584800).

Almost surely, 2^{121112311333311} is an apocalyptic number.

121112311333311 is a deficient number, since it is larger than the sum of its proper divisors (58313602023489).

121112311333311 is an equidigital number, since it uses as much as digits as its factorization.

121112311333311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6673435 (or 6673429 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

Adding to 121112311333311 its reverse (113333113211121), we get a palindrome (234445424544432).

The spelling of 121112311333311 in words is "one hundred twenty-one trillion, one hundred twelve billion, three hundred eleven million, three hundred thirty-three thousand, three hundred eleven".