400420105303 has 4 divisors (see below), whose sum is σ = 406059825168. Its totient is φ = 394780385440.

The previous prime is 400420105301. The next prime is 400420105307. The reversal of 400420105303 is 303501024004.

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 400420105303 - 2¹ = 400420105301 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 (400420105301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2819859826 + ... + 2819859967.

It is an arithmetic number, because the mean of its divisors is an integer number (101514956292).

Almost surely, 2^400420105303 is an apocalyptic number.

400420105303 is a deficient number, since it is larger than the sum of its proper divisors (5639719865).

400420105303 is an equidigital number, since it uses as much as digits as its factorization.

400420105303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5639719864.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 400420105303 its reverse (303501024004), we get a palindrome (703921129307).

The spelling of 400420105303 in words is "four hundred billion, four hundred twenty million, one hundred five thousand, three hundred three".