121123413 has 12 divisors (see below), whose sum is σ = 175069440. Its totient is φ = 80696616.

The previous prime is 121123399. The next prime is 121123421. The reversal of 121123413 is 314321121.

It is not a de Polignac number, because 121123413 - 2¹⁰ = 121122389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121123493) by changing a digit.

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, 14668 + ... + 21386.

It is an arithmetic number, because the mean of its divisors is an integer number (14589120).

Almost surely, 2^121123413 is an apocalyptic number.

It is an amenable number.

121123413 is a deficient number, since it is larger than the sum of its proper divisors (53946027).

121123413 is a wasteful number, since it uses less digits than its factorization.

121123413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728 (or 8725 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 121123413 is about 11005.6082521594. The cubic root of 121123413 is about 494.7768446221.

Adding to 121123413 its reverse (314321121), we get a palindrome (435444534).

The spelling of 121123413 in words is "one hundred twenty-one million, one hundred twenty-three thousand, four hundred thirteen".