20431200302012 has 12 divisors (see below), whose sum is σ = 35755580549976. Its totient is φ = 10215320144880.

The previous prime is 20431200301987. The next prime is 20431200302021. The reversal of 20431200302012 is 21020300213402.

It is a super-2 number, since 2×20431200302012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69837314 + ... + 70129257.

It is an arithmetic number, because the mean of its divisors is an integer number (2979631712498).

Almost surely, 2^{20431200302012} is an apocalyptic number.

It is an amenable number.

20431200302012 is a deficient number, since it is larger than the sum of its proper divisors (15324380247964).

20431200302012 is a wasteful number, since it uses less digits than its factorization.

20431200302012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140003068 (or 140003066 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20431200302012 its reverse (21020300213402), we get a palindrome (41451500515414).

The spelling of 20431200302012 in words is "twenty trillion, four hundred thirty-one billion, two hundred million, three hundred two thousand, twelve".