12901026052 has 24 divisors (see below), whose sum is σ = 23619536640. Its totient is φ = 6159282240.

The previous prime is 12901026041. The next prime is 12901026107. The reversal of 12901026052 is 25062010921.

It is a self number, because there is not a number n which added to its sum of digits gives 12901026052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829152 + ... + 844567.

It is an arithmetic number, because the mean of its divisors is an integer number (984147360).

Almost surely, 2^12901026052 is an apocalyptic number.

It is an amenable number.

12901026052 is a deficient number, since it is larger than the sum of its proper divisors (10718510588).

12901026052 is a wasteful number, since it uses less digits than its factorization.

12901026052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673811 (or 1673809 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 12901026052 its reverse (25062010921), we get a palindrome (37963036973).

The spelling of 12901026052 in words is "twelve billion, nine hundred one million, twenty-six thousand, fifty-two".