403204421234121 has 16 divisors (see below), whose sum is σ = 580303489731840. Its totient is φ = 247550099765760.

The previous prime is 403204421234113. The next prime is 403204421234171. The reversal of 403204421234121 is 121432124402304.

It is not a de Polignac number, because 403204421234121 - 2³ = 403204421234113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (403204421234171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11993689576 + ... + 11993723193.

It is an arithmetic number, because the mean of its divisors is an integer number (36268968108240).

Almost surely, 2^{403204421234121} is an apocalyptic number.

It is an amenable number.

403204421234121 is a deficient number, since it is larger than the sum of its proper divisors (177099068497719).

403204421234121 is a wasteful number, since it uses less digits than its factorization.

403204421234121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23987413216.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 403204421234121 its reverse (121432124402304), we get a palindrome (524636545636425).

The spelling of 403204421234121 in words is "four hundred three trillion, two hundred four billion, four hundred twenty-one million, two hundred thirty-four thousand, one hundred twenty-one".