420436056404121 has 16 divisors (see below), whose sum is σ = 579460642295808. Its totient is φ = 270875961219600.

The previous prime is 420436056404083. The next prime is 420436056404129. The reversal of 420436056404121 is 121404650634024.

It is not a de Polignac number, because 420436056404121 - 2¹⁸ = 420436056141977 is a prime.

It is a super-3 number, since 3×420436056404121³ (a number of 45 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (420436056404129) 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, 3109160595 + ... + 3109295816.

It is an arithmetic number, because the mean of its divisors is an integer number (36216290143488).

Almost surely, 2^{420436056404121} is an apocalyptic number.

It is an amenable number.

420436056404121 is a deficient number, since it is larger than the sum of its proper divisors (159024585891687).

420436056404121 is a wasteful number, since it uses less digits than its factorization.

420436056404121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6218457172.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 420436056404121 in words is "four hundred twenty trillion, four hundred thirty-six billion, fifty-six million, four hundred four thousand, one hundred twenty-one".