20387210012 has 48 divisors (see below), whose sum is σ = 39681603360. Its totient is φ = 9103871232.

The previous prime is 20387210003. The next prime is 20387210057. The reversal of 20387210012 is 21001278302.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314798 + ... + 373994.

It is an arithmetic number, because the mean of its divisors is an integer number (826700070).

Almost surely, 2^20387210012 is an apocalyptic number.

It is an amenable number.

20387210012 is a deficient number, since it is larger than the sum of its proper divisors (19294393348).

20387210012 is a wasteful number, since it uses less digits than its factorization.

20387210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59430 (or 59428 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 20387210012 its reverse (21001278302), we get a palindrome (41388488314).

The spelling of 20387210012 in words is "twenty billion, three hundred eighty-seven million, two hundred ten thousand, twelve".