420104121 has 16 divisors (see below), whose sum is σ = 580167360. Its totient is φ = 270079040.

The previous prime is 420104107. The next prime is 420104171. The reversal of 420104121 is 121401024.

It is a cyclic number.

It is not a de Polignac number, because 420104121 - 2⁶ = 420104057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420104121.

It is not an unprimeable number, because it can be changed into a prime (420104101) 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, 81991 + ... + 86963.

It is an arithmetic number, because the mean of its divisors is an integer number (36260460).

Almost surely, 2^420104121 is an apocalyptic number.

It is an amenable number.

420104121 is a deficient number, since it is larger than the sum of its proper divisors (160063239).

420104121 is a wasteful number, since it uses less digits than its factorization.

420104121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5976.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 420104121 is about 20496.4416667869. The cubic root of 420104121 is about 748.9491184405.

Adding to 420104121 its reverse (121401024), we get a palindrome (541505145).

The spelling of 420104121 in words is "four hundred twenty million, one hundred four thousand, one hundred twenty-one".