13010421056 has 14 divisors (see below), whose sum is σ = 25817554410. Its totient is φ = 6505210496.

The previous prime is 13010421023. The next prime is 13010421059. The reversal of 13010421056 is 65012401031.

It can be written as a sum of positive squares in only one way, i.e., 8813454400 + 4196966656 = 93880^2 + 64784^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13010421059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101643851 + ... + 101643978.

Almost surely, 2^13010421056 is an apocalyptic number.

13010421056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13010421056 is a deficient number, since it is larger than the sum of its proper divisors (12807133354).

13010421056 is an equidigital number, since it uses as much as digits as its factorization.

13010421056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203287841 (or 203287831 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 13010421056 its reverse (65012401031), we get a palindrome (78022822087).

The spelling of 13010421056 in words is "thirteen billion, ten million, four hundred twenty-one thousand, fifty-six".