420203423113202 has 16 divisors (see below), whose sum is σ = 642265852522392. Its totient is φ = 206115647187840.

The previous prime is 420203423113193. The next prime is 420203423113213. The reversal of 420203423113202 is 202311324302024.

It can be written as a sum of positive squares in 4 ways, for example, as 363489133982881 + 56714289130321 = 19065391^2 + 7530889^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209392163 + ... + 211389414.

Almost surely, 2^{420203423113202} is an apocalyptic number.

420203423113202 is a deficient number, since it is larger than the sum of its proper divisors (222062429409190).

420203423113202 is a wasteful number, since it uses less digits than its factorization.

420203423113202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420791053.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 420203423113202 its reverse (202311324302024), we get a palindrome (622514747415226).

The spelling of 420203423113202 in words is "four hundred twenty trillion, two hundred three billion, four hundred twenty-three million, one hundred thirteen thousand, two hundred two".