420122403421 has 16 divisors (see below), whose sum is σ = 480857184000. Its totient is φ = 359567359488.

The previous prime is 420122403413. The next prime is 420122403433. The reversal of 420122403421 is 124304221024.

It is a cyclic number.

It is not a de Polignac number, because 420122403421 - 2³ = 420122403413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420122403451) 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, 13258605 + ... + 13290253.

It is an arithmetic number, because the mean of its divisors is an integer number (30053574000).

Almost surely, 2^420122403421 is an apocalyptic number.

It is an amenable number.

420122403421 is a deficient number, since it is larger than the sum of its proper divisors (60734780579).

420122403421 is a wasteful number, since it uses less digits than its factorization.

420122403421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34428.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 420122403421 its reverse (124304221024), we get a palindrome (544426624445).

It can be divided in two parts, 420122 and 403421, that added together give a 7-th power (823543 = 7⁷).

The spelling of 420122403421 in words is "four hundred twenty billion, one hundred twenty-two million, four hundred three thousand, four hundred twenty-one".