12821401038 has 64 divisors (see below), whose sum is σ = 26457995520. Its totient is φ = 4140498432.

The previous prime is 12821401027. The next prime is 12821401067. The reversal of 12821401038 is 83010412821.

It is a junction number, because it is equal to n+sod(n) for n = 12821400996 and 12821401014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7879581 + ... + 7881207.

It is an arithmetic number, because the mean of its divisors is an integer number (413406180).

Almost surely, 2^12821401038 is an apocalyptic number.

12821401038 is an abundant number, since it is smaller than the sum of its proper divisors (13636594482).

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

12821401038 is a wasteful number, since it uses less digits than its factorization.

12821401038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001.

The product of its (nonzero) digits is 3072, while the sum is 30.

Adding to 12821401038 its reverse (83010412821), we get a palindrome (95831813859).

The spelling of 12821401038 in words is "twelve billion, eight hundred twenty-one million, four hundred one thousand, thirty-eight".