12820042010 has 8 divisors (see below), whose sum is σ = 23076075636. Its totient is φ = 5128016800.

The previous prime is 12820041961. The next prime is 12820042019. The reversal of 12820042010 is 1024002821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12309236809 + 510805201 = 110947^2 + 22601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12820042019) 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, 641002091 + ... + 641002110.

Almost surely, 2^12820042010 is an apocalyptic number.

12820042010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12820042010 is a deficient number, since it is larger than the sum of its proper divisors (10256033626).

12820042010 is a wasteful number, since it uses less digits than its factorization.

12820042010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282004208.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12820042010 its reverse (1024002821), we get a palindrome (13844044831).

The spelling of 12820042010 in words is "twelve billion, eight hundred twenty million, forty-two thousand, ten".