420754503122 has 6 divisors (see below), whose sum is σ = 631133130693. Its totient is φ = 210376792892.

The previous prime is 420754503097. The next prime is 420754503133. The reversal of 420754503122 is 221305457024.

It can be written as a sum of positive squares in 2 ways, for example, as 417172600321 + 3581902801 = 645889^2 + 59849^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=458669.

It is a super-2 number, since 2×420754503122² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 688004 + ... + 1146672.

Almost surely, 2^420754503122 is an apocalyptic number.

420754503122 is a deficient number, since it is larger than the sum of its proper divisors (210378627571).

420754503122 is an frugal number, since it uses more digits than its factorization.

420754503122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917340 (or 458671 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 420754503122 in words is "four hundred twenty billion, seven hundred fifty-four million, five hundred three thousand, one hundred twenty-two".