20233353312 has 96 divisors (see below), whose sum is σ = 59536481760. Its totient is φ = 6684733440.

The previous prime is 20233353311. The next prime is 20233353347. The reversal of 20233353312 is 21335333202.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233353311) 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, 5989 + ... + 201252.

It is an arithmetic number, because the mean of its divisors is an integer number (620171685).

Almost surely, 2^20233353312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20233353312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29768240880).

20233353312 is an abundant number, since it is smaller than the sum of its proper divisors (39303128448).

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

20233353312 is a wasteful number, since it uses less digits than its factorization.

20233353312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207373 (or 207359 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 27.

Adding to 20233353312 its reverse (21335333202), we get a palindrome (41568686514).

It can be divided in two parts, 20 and 233353312, that added together give a palindrome (233353332).

The spelling of 20233353312 in words is "twenty billion, two hundred thirty-three million, three hundred fifty-three thousand, three hundred twelve".