10420400011 has 4 divisors (see below), whose sum is σ = 11909028592. Its totient is φ = 8931771432.

The previous prime is 10420399999. The next prime is 10420400017. The reversal of 10420400011 is 11000402401.

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 10420400011 - 2¹³ = 10420391819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10420399964 and 10420400000.

It is not an unprimeable number, because it can be changed into a prime (10420400017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744314280 + ... + 744314293.

It is an arithmetic number, because the mean of its divisors is an integer number (2977257148).

Almost surely, 2^10420400011 is an apocalyptic number.

10420400011 is a deficient number, since it is larger than the sum of its proper divisors (1488628581).

10420400011 is an equidigital number, since it uses as much as digits as its factorization.

10420400011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488628580.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10420400011 its reverse (11000402401), we get a palindrome (21420802412).

The spelling of 10420400011 in words is "ten billion, four hundred twenty million, four hundred thousand, eleven".