20213333112 has 32 divisors (see below), whose sum is σ = 57752380800. Its totient is φ = 5775237984.

The previous prime is 20213333089. The next prime is 20213333117. The reversal of 20213333112 is 21133331202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213333117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60158562 + ... + 60158897.

It is an arithmetic number, because the mean of its divisors is an integer number (1804761900).

Almost surely, 2^20213333112 is an apocalyptic number.

It is an amenable number.

20213333112 is an abundant number, since it is smaller than the sum of its proper divisors (37539047688).

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

20213333112 is a wasteful number, since it uses less digits than its factorization.

20213333112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120317475 (or 120317471 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20213333112 its reverse (21133331202), we get a palindrome (41346664314).

The spelling of 20213333112 in words is "twenty billion, two hundred thirteen million, three hundred thirty-three thousand, one hundred twelve".