420011110061 has 2 divisors, whose sum is σ = 420011110062. Its totient is φ = 420011110060.

The previous prime is 420011110009. The next prime is 420011110063. The reversal of 420011110061 is 160011110024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364683132100 + 55327977961 = 603890^2 + 235219^2 .

It is a cyclic number.

It is not a de Polignac number, because 420011110061 - 2⁶ = 420011109997 is a prime.

Together with 420011110063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420011110063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210005555030 + 210005555031.

It is an arithmetic number, because the mean of its divisors is an integer number (210005555031).

Almost surely, 2^420011110061 is an apocalyptic number.

It is an amenable number.

420011110061 is a deficient number, since it is larger than the sum of its proper divisors (1).

420011110061 is an equidigital number, since it uses as much as digits as its factorization.

420011110061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 420011110061 its reverse (160011110024), we get a palindrome (580022220085).

The spelling of 420011110061 in words is "four hundred twenty billion, eleven million, one hundred ten thousand, sixty-one".