121110011 has 8 divisors (see below), whose sum is σ = 132457584. Its totient is φ = 109818720.

The previous prime is 121109959. The next prime is 121110037. The reversal of 121110011 is 110011121.

It is a happy number.

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

It is not a de Polignac number, because 121110011 - 2¹⁰ = 121108987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110911) 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, 9500 + ... + 18233.

It is an arithmetic number, because the mean of its divisors is an integer number (16557198).

Almost surely, 2^121110011 is an apocalyptic number.

121110011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121110011 is a deficient number, since it is larger than the sum of its proper divisors (11347573).

121110011 is a wasteful number, since it uses less digits than its factorization.

121110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28141.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 121110011 is about 11004.9993639255. Note that the first 3 decimals coincide. The cubic root of 121110011 is about 494.7585953459.

Adding to 121110011 its reverse (110011121), we get a palindrome (231121132).

It can be divided in two parts, 121 and 110011, that multiplied together give a palindrome (13311331).

The spelling of 121110011 in words is "one hundred twenty-one million, one hundred ten thousand, eleven".