20312003230212 has 96 divisors (see below), whose sum is σ = 51471300916224. Its totient is φ = 6219678873600.

The previous prime is 20312003230187. The next prime is 20312003230213. The reversal of 20312003230212 is 21203230021302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20312003230213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17432433 + ... + 18561080.

It is an arithmetic number, because the mean of its divisors is an integer number (536159384544).

Almost surely, 2^{20312003230212} is an apocalyptic number.

It is an amenable number.

20312003230212 is an abundant number, since it is smaller than the sum of its proper divisors (31159297686012).

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

20312003230212 is a wasteful number, since it uses less digits than its factorization.

20312003230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35993629 (or 35993627 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20312003230212 its reverse (21203230021302), we get a palindrome (41515233251514).

The spelling of 20312003230212 in words is "twenty trillion, three hundred twelve billion, three million, two hundred thirty thousand, two hundred twelve".