420445135011142 has 32 divisors (see below), whose sum is σ = 681241094461440. Its totient is φ = 194044661564160.

The previous prime is 420445135011107. The next prime is 420445135011221. The reversal of 420445135011142 is 241110531544024.

It is a super-2 number, since 2×420445135011142² (a number of 30 digits) contains 22 as substring.

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, 417120292 + ... + 418127047.

It is an arithmetic number, because the mean of its divisors is an integer number (21288784201920).

Almost surely, 2^{420445135011142} is an apocalyptic number.

420445135011142 is a deficient number, since it is larger than the sum of its proper divisors (260795959450298).

420445135011142 is a wasteful number, since it uses less digits than its factorization.

420445135011142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835247748.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 420445135011142 its reverse (241110531544024), we get a palindrome (661555666555166).

The spelling of 420445135011142 in words is "four hundred twenty trillion, four hundred forty-five billion, one hundred thirty-five million, eleven thousand, one hundred forty-two".