20113222310312 has 32 divisors (see below), whose sum is σ = 40493065648320. Its totient is φ = 9331735284480.

The previous prime is 20113222310267. The next prime is 20113222310323. The reversal of 20113222310312 is 21301322231102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1041478658 + ... + 1041497969.

It is an arithmetic number, because the mean of its divisors is an integer number (1265408301510).

Almost surely, 2^{20113222310312} is an apocalyptic number.

It is an amenable number.

20113222310312 is an abundant number, since it is smaller than the sum of its proper divisors (20379843338008).

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

20113222310312 is a wasteful number, since it uses less digits than its factorization.

20113222310312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082976721 (or 2082976717 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20113222310312 its reverse (21301322231102), we get a palindrome (41414544541414).

The spelling of 20113222310312 in words is "twenty trillion, one hundred thirteen billion, two hundred twenty-two million, three hundred ten thousand, three hundred twelve".