420775122135 has 16 divisors (see below), whose sum is σ = 673303144320. Its totient is φ = 224392415520.

The previous prime is 420775122127. The next prime is 420775122161. The reversal of 420775122135 is 531221577024.

It is not a de Polignac number, because 420775122135 - 2³ = 420775122127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420775122093 and 420775122102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144981 + ... + 1467150.

It is an arithmetic number, because the mean of its divisors is an integer number (42081446520).

Almost surely, 2^420775122135 is an apocalyptic number.

420775122135 is a deficient number, since it is larger than the sum of its proper divisors (252528022185).

420775122135 is a wasteful number, since it uses less digits than its factorization.

420775122135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622878.

The product of its (nonzero) digits is 117600, while the sum is 39.

Adding to 420775122135 its reverse (531221577024), we get a palindrome (951996699159).

The spelling of 420775122135 in words is "four hundred twenty billion, seven hundred seventy-five million, one hundred twenty-two thousand, one hundred thirty-five".