20213223210312 has 128 divisors (see below), whose sum is σ = 55185577257600. Its totient is φ = 6118710220800.

The previous prime is 20213223210239. The next prime is 20213223210337. The reversal of 20213223210312 is 21301232231202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2458726362 + ... + 2458734582.

It is an arithmetic number, because the mean of its divisors is an integer number (431137322325).

Almost surely, 2^{20213223210312} is an apocalyptic number.

20213223210312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20213223210312 is an abundant number, since it is smaller than the sum of its proper divisors (34972354047288).

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

20213223210312 is a wasteful number, since it uses less digits than its factorization.

20213223210312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17007 (or 17003 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20213223210312 its reverse (21301232231202), we get a palindrome (41514455441514).

The spelling of 20213223210312 in words is "twenty trillion, two hundred thirteen billion, two hundred twenty-three million, two hundred ten thousand, three hundred twelve".