121100230111 has 32 divisors (see below), whose sum is σ = 141325890048. Its totient is φ = 101632164480.

The previous prime is 121100230091. The next prime is 121100230123. The reversal of 121100230111 is 111032001121.

It is a happy number.

It is not a de Polignac number, because 121100230111 - 2⁷ = 121100229983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121100230091 and 121100230100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100230171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37595481 + ... + 37598701.

It is an arithmetic number, because the mean of its divisors is an integer number (4416434064).

Almost surely, 2^121100230111 is an apocalyptic number.

121100230111 is a deficient number, since it is larger than the sum of its proper divisors (20225659937).

121100230111 is a wasteful number, since it uses less digits than its factorization.

121100230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121100230111 its reverse (111032001121), we get a palindrome (232132231232).

The spelling of 121100230111 in words is "one hundred twenty-one billion, one hundred million, two hundred thirty thousand, one hundred eleven".