20211112231320 has 64 divisors (see below), whose sum is σ = 60641607892320. Its totient is φ = 5388894710784.

The previous prime is 20211112231319. The next prime is 20211112231327. The reversal of 20211112231320 is 2313221111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211112231327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10604149 + ... + 12364068.

Almost surely, 2^{20211112231320} is an apocalyptic number.

20211112231320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211112231320 is an abundant number, since it is smaller than the sum of its proper divisors (40430495661000).

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

20211112231320 is a wasteful number, since it uses less digits than its factorization.

20211112231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22975564 (or 22975560 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20211112231320 its reverse (2313221111202), we get a palindrome (22524333342522).

The spelling of 20211112231320 in words is "twenty trillion, two hundred eleven billion, one hundred twelve million, two hundred thirty-one thousand, three hundred twenty".