420132024120121 has 4 divisors (see below), whose sum is σ = 422951702134500. Its totient is φ = 417312346105744.

The previous prime is 420132024120103. The next prime is 420132024120227. The reversal of 420132024120121 is 121021420231024.

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 264235948472896 + 155896075647225 = 16255336^2 + 12485835^2 .

It is a cyclic number.

It is not a de Polignac number, because 420132024120121 - 2¹⁵ = 420132024087353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420132024120521) 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, 1409839006966 + ... + 1409839007263.

It is an arithmetic number, because the mean of its divisors is an integer number (105737925533625).

Almost surely, 2^{420132024120121} is an apocalyptic number.

It is an amenable number.

420132024120121 is a deficient number, since it is larger than the sum of its proper divisors (2819678014379).

420132024120121 is a wasteful number, since it uses less digits than its factorization.

420132024120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819678014378.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 420132024120121 its reverse (121021420231024), we get a palindrome (541153444351145).

The spelling of 420132024120121 in words is "four hundred twenty trillion, one hundred thirty-two billion, twenty-four million, one hundred twenty thousand, one hundred twenty-one".