420071611001 has 16 divisors (see below), whose sum is σ = 506990582784. Its totient is φ = 340257051024.

The previous prime is 420071610977. The next prime is 420071611013. The reversal of 420071611001 is 100116170024.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420071611001 is a prime.

It is a super-3 number, since 3×420071611001³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420071611051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15704351 + ... + 15731076.

It is an arithmetic number, because the mean of its divisors is an integer number (31686911424).

Almost surely, 2^420071611001 is an apocalyptic number.

It is an amenable number.

420071611001 is a deficient number, since it is larger than the sum of its proper divisors (86918971783).

420071611001 is a wasteful number, since it uses less digits than its factorization.

420071611001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31435540.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 420071611001 its reverse (100116170024), we get a palindrome (520187781025).

The spelling of 420071611001 in words is "four hundred twenty billion, seventy-one million, six hundred eleven thousand, one".