20312651654212 has 24 divisors (see below), whose sum is σ = 35772686187840. Its totient is φ = 10091927331360.

The previous prime is 20312651654167. The next prime is 20312651654227. The reversal of 20312651654212 is 21245615621302.

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 7 ways as a sum of consecutive naturals, for example, 3510339 + ... + 7276522.

It is an arithmetic number, because the mean of its divisors is an integer number (1490528591160).

Almost surely, 2^{20312651654212} is an apocalyptic number.

It is an amenable number.

20312651654212 is a deficient number, since it is larger than the sum of its proper divisors (15460034533628).

20312651654212 is a wasteful number, since it uses less digits than its factorization.

20312651654212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10789851 (or 10789849 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 20312651654212 in words is "twenty trillion, three hundred twelve billion, six hundred fifty-one million, six hundred fifty-four thousand, two hundred twelve".