420123144334234 has 16 divisors (see below), whose sum is σ = 688029995513376. Its totient is φ = 190810688014800.

The previous prime is 420123144334199. The next prime is 420123144334259. The reversal of 420123144334234 is 432433441321024.

It is a happy number.

It is a super-2 number, since 2×420123144334234² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7718851752 + ... + 7718906179.

It is an arithmetic number, because the mean of its divisors is an integer number (43001874719586).

Almost surely, 2^{420123144334234} is an apocalyptic number.

420123144334234 is a deficient number, since it is larger than the sum of its proper divisors (267906851179142).

420123144334234 is a wasteful number, since it uses less digits than its factorization.

420123144334234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15437759181.

The product of its (nonzero) digits is 663552, while the sum is 40.

Adding to 420123144334234 its reverse (432433441321024), we get a palindrome (852556585655258).

The spelling of 420123144334234 in words is "four hundred twenty trillion, one hundred twenty-three billion, one hundred forty-four million, three hundred thirty-four thousand, two hundred thirty-four".