403200121 has 16 divisors (see below), whose sum is σ = 439859200. Its totient is φ = 368314128.

The previous prime is 403200113. The next prime is 403200131. The reversal of 403200121 is 121002304.

It is a cyclic number.

It is not a de Polignac number, because 403200121 - 2³ = 403200113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403200131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61420 + ... + 67666.

It is an arithmetic number, because the mean of its divisors is an integer number (27491200).

Almost surely, 2^403200121 is an apocalyptic number.

It is an amenable number.

403200121 is a deficient number, since it is larger than the sum of its proper divisors (36659079).

403200121 is a wasteful number, since it uses less digits than its factorization.

403200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 403200121 is about 20079.8436497897. The cubic root of 403200121 is about 738.7659740801.

Adding to 403200121 its reverse (121002304), we get a palindrome (524202425).

The spelling of 403200121 in words is "four hundred three million, two hundred thousand, one hundred twenty-one".