20012310512 has 20 divisors (see below), whose sum is σ = 41054666976. Its totient is φ = 9417557760.

The previous prime is 20012310503. The next prime is 20012310533. The reversal of 20012310512 is 21501321002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36787064 + ... + 36787607.

Almost surely, 2^20012310512 is an apocalyptic number.

It is an amenable number.

20012310512 is an abundant number, since it is smaller than the sum of its proper divisors (21042356464).

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

20012310512 is a wasteful number, since it uses less digits than its factorization.

20012310512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73574696 (or 73574690 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 20012310512 its reverse (21501321002), we get a palindrome (41513631514).

The spelling of 20012310512 in words is "twenty billion, twelve million, three hundred ten thousand, five hundred twelve".