121011113101 has 4 divisors (see below), whose sum is σ = 121012717500. Its totient is φ = 121009508704.

The previous prime is 121011113071. The next prime is 121011113129. The reversal of 121011113101 is 101311110121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62205348100 + 58805765001 = 249410^2 + 242499^2 .

It is a cyclic number.

It is not a de Polignac number, because 121011113101 - 2³¹ = 118863629453 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 (121011113161) 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, 683176 + ... + 841873.

It is an arithmetic number, because the mean of its divisors is an integer number (30253179375).

Almost surely, 2^121011113101 is an apocalyptic number.

It is an amenable number.

121011113101 is a deficient number, since it is larger than the sum of its proper divisors (1604399).

121011113101 is an equidigital number, since it uses as much as digits as its factorization.

121011113101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604398.

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

Adding to 121011113101 its reverse (101311110121), we get a palindrome (222322223222).

The spelling of 121011113101 in words is "one hundred twenty-one billion, eleven million, one hundred thirteen thousand, one hundred one".