420240014121121 has 16 divisors (see below), whose sum is σ = 447050316398400. Its totient is φ = 393904469448000.

The previous prime is 420240014121113. The next prime is 420240014121131. The reversal of 420240014121121 is 121121410042024.

It is a cyclic number.

It is not a de Polignac number, because 420240014121121 - 2³ = 420240014121113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420240014121131) 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, 73880935 + ... + 79365436.

It is an arithmetic number, because the mean of its divisors is an integer number (27940644774900).

Almost surely, 2^{420240014121121} is an apocalyptic number.

It is an amenable number.

420240014121121 is a deficient number, since it is larger than the sum of its proper divisors (26810302277279).

420240014121121 is a wasteful number, since it uses less digits than its factorization.

420240014121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153247920.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 420240014121121 its reverse (121121410042024), we get a palindrome (541361424163145).

The spelling of 420240014121121 in words is "four hundred twenty trillion, two hundred forty billion, fourteen million, one hundred twenty-one thousand, one hundred twenty-one".