420433402111 has 2 divisors, whose sum is σ = 420433402112. Its totient is φ = 420433402110.

The previous prime is 420433402093. The next prime is 420433402127. The reversal of 420433402111 is 111204334024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420433402111 - 2²¹ = 420431304959 is a prime.

It is a super-2 number, since 2×420433402111² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420433402171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210216701055 + 210216701056.

It is an arithmetic number, because the mean of its divisors is an integer number (210216701056).

Almost surely, 2^420433402111 is an apocalyptic number.

420433402111 is a deficient number, since it is larger than the sum of its proper divisors (1).

420433402111 is an equidigital number, since it uses as much as digits as its factorization.

420433402111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 420433402111 its reverse (111204334024), we get a palindrome (531637736135).

The spelling of 420433402111 in words is "four hundred twenty billion, four hundred thirty-three million, four hundred two thousand, one hundred eleven".