420102311 has 4 divisors (see below), whose sum is σ = 420181512. Its totient is φ = 420023112.

The previous prime is 420102307. The next prime is 420102377. The reversal of 420102311 is 113201024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420102311 - 2² = 420102307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420102391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31025 + ... + 42458.

It is an arithmetic number, because the mean of its divisors is an integer number (105045378).

Almost surely, 2^420102311 is an apocalyptic number.

420102311 is a deficient number, since it is larger than the sum of its proper divisors (79201).

420102311 is an equidigital number, since it uses as much as digits as its factorization.

420102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79200.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 420102311 is about 20496.3975127338. The cubic root of 420102311 is about 748.9480428343.

Adding to 420102311 its reverse (113201024), we get a palindrome (533303335).

The spelling of 420102311 in words is "four hundred twenty million, one hundred two thousand, three hundred eleven".