420043311 has 6 divisors (see below), whose sum is σ = 606729240. Its totient is φ = 280028868.

The previous prime is 420043291. The next prime is 420043331. The reversal of 420043311 is 113340024.

It is an interprime number because it is at equal distance from previous prime (420043291) and next prime (420043331).

It is not a de Polignac number, because 420043311 - 2¹¹ = 420041263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420043331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23335731 + ... + 23335748.

It is an arithmetic number, because the mean of its divisors is an integer number (101121540).

Almost surely, 2^420043311 is an apocalyptic number.

420043311 is a deficient number, since it is larger than the sum of its proper divisors (186685929).

420043311 is a wasteful number, since it uses less digits than its factorization.

420043311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46671485 (or 46671482 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 420043311 is about 20494.9581848805. The cubic root of 420043311 is about 748.9129799443.

Adding to 420043311 its reverse (113340024), we get a palindrome (533383335).

The spelling of 420043311 in words is "four hundred twenty million, forty-three thousand, three hundred eleven".