121004413 has 4 divisors (see below), whose sum is σ = 121506748. Its totient is φ = 120502080.

The previous prime is 121004399. The next prime is 121004417. The reversal of 121004413 is 314400121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43599609 + 77404804 = 6603^2 + 8798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121004413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121004417) 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, 250806 + ... + 251287.

It is an arithmetic number, because the mean of its divisors is an integer number (30376687).

Almost surely, 2^121004413 is an apocalyptic number.

It is an amenable number.

121004413 is a deficient number, since it is larger than the sum of its proper divisors (502335).

121004413 is an equidigital number, since it uses as much as digits as its factorization.

121004413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502334.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121004413 is about 11000.2005890802. The cubic root of 121004413 is about 494.6147572225.

Adding to 121004413 its reverse (314400121), we get a palindrome (435404534).

The spelling of 121004413 in words is "one hundred twenty-one million, four thousand, four hundred thirteen".