121113045 has 12 divisors (see below), whose sum is σ = 209929356. Its totient is φ = 64593600.

The previous prime is 121112993. The next prime is 121113067. The reversal of 121113045 is 540311121.

It can be written as a sum of positive squares in 2 ways, for example, as 14424804 + 106688241 = 3798^2 + 10329^2 .

It is not a de Polignac number, because 121113045 - 2¹⁵ = 121080277 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1345656 + ... + 1345745.

It is an arithmetic number, because the mean of its divisors is an integer number (17494113).

Almost surely, 2^121113045 is an apocalyptic number.

121113045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121113045 is a deficient number, since it is larger than the sum of its proper divisors (88816311).

121113045 is a wasteful number, since it uses less digits than its factorization.

121113045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691412 (or 2691409 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 121113045 is about 11005.1372095036. The cubic root of 121113045 is about 494.7627268102.

Adding to 121113045 its reverse (540311121), we get a palindrome (661424166).

The spelling of 121113045 in words is "one hundred twenty-one million, one hundred thirteen thousand, forty-five".