2113121110 has 8 divisors (see below), whose sum is σ = 3803618016. Its totient is φ = 845248440.

The previous prime is 2113121083. The next prime is 2113121111. The reversal of 2113121110 is 111213112.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113121111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105656046 + ... + 105656065.

It is an arithmetic number, because the mean of its divisors is an integer number (475452252).

Almost surely, 2^2113121110 is an apocalyptic number.

2113121110 is a deficient number, since it is larger than the sum of its proper divisors (1690496906).

2113121110 is a wasteful number, since it uses less digits than its factorization.

2113121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211312118.

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

The square root of 2113121110 is about 45968.6970665909. The cubic root of 2113121110 is about 1283.2407119676.

Adding to 2113121110 its reverse (111213112), we get a palindrome (2224334222).

The spelling of 2113121110 in words is "two billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred ten".