121113101 has 4 divisors (see below), whose sum is σ = 126378912. Its totient is φ = 115847292.

The previous prime is 121113089. The next prime is 121113107. The reversal of 121113101 is 101311121.

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: 101311121 = 4639 ⋅21839.

It is a cyclic number.

It is not a de Polignac number, because 121113101 - 2¹⁰ = 121112077 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 (121113107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2632871 + ... + 2632916.

It is an arithmetic number, because the mean of its divisors is an integer number (31594728).

Almost surely, 2^121113101 is an apocalyptic number.

It is an amenable number.

121113101 is a deficient number, since it is larger than the sum of its proper divisors (5265811).

121113101 is an equidigital number, since it uses as much as digits as its factorization.

121113101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265810.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 121113101 is about 11005.1397537696. The cubic root of 121113101 is about 494.7628030659.

Adding to 121113101 its reverse (101311121), we get a palindrome (222424222).

The spelling of 121113101 in words is "one hundred twenty-one million, one hundred thirteen thousand, one hundred one".