11256410420 has 12 divisors (see below), whose sum is σ = 23638461924. Its totient is φ = 4502564160.

The previous prime is 11256410411. The next prime is 11256410443. The reversal of 11256410420 is 2401465211.

It can be written as a sum of positive squares in 2 ways, for example, as 7389809296 + 3866601124 = 85964^2 + 62182^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11256410420.

It is a congruent number.

It is an unprimeable number.

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, 281410241 + ... + 281410280.

It is an arithmetic number, because the mean of its divisors is an integer number (1969871827).

Almost surely, 2^11256410420 is an apocalyptic number.

11256410420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11256410420 is an abundant number, since it is smaller than the sum of its proper divisors (12382051504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11256410420 is a wasteful number, since it uses less digits than its factorization.

11256410420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562820530 (or 562820528 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 11256410420 its reverse (2401465211), we get a palindrome (13657875631).

The spelling of 11256410420 in words is "eleven billion, two hundred fifty-six million, four hundred ten thousand, four hundred twenty".