121026113 has 8 divisors (see below), whose sum is σ = 130421928. Its totient is φ = 111642624.

The previous prime is 121026107. The next prime is 121026121. The reversal of 121026113 is 311620121.

It can be written as a sum of positive squares in 4 ways, for example, as 3888784 + 117137329 = 1972^2 + 10823^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 121026113 - 2⁴ = 121026097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121026091 and 121026100.

It is not an unprimeable number, because it can be changed into a prime (121026163) 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, 33281 + ... + 36737.

It is an arithmetic number, because the mean of its divisors is an integer number (16302741).

Almost surely, 2^121026113 is an apocalyptic number.

121026113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121026113 is a deficient number, since it is larger than the sum of its proper divisors (9395815).

121026113 is a wasteful number, since it uses less digits than its factorization.

121026113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6163.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 121026113 is about 11001.1868905132. The cubic root of 121026113 is about 494.6443222564.

Adding to 121026113 its reverse (311620121), we get a palindrome (432646234).

The spelling of 121026113 in words is "one hundred twenty-one million, twenty-six thousand, one hundred thirteen".