233312013220 has 96 divisors (see below), whose sum is σ = 575762939136. Its totient is φ = 78293952000.

The previous prime is 233312013197. The next prime is 233312013251. The reversal of 233312013220 is 22310213332.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 233312013191 and 233312013200.

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, 14151622 + ... + 14168098.

It is an arithmetic number, because the mean of its divisors is an integer number (5997530616).

Almost surely, 2^233312013220 is an apocalyptic number.

233312013220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233312013220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287881469568).

233312013220 is an abundant number, since it is smaller than the sum of its proper divisors (342450925916).

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

233312013220 is a wasteful number, since it uses less digits than its factorization.

233312013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21461 (or 21459 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 233312013220 its reverse (22310213332), we get a palindrome (255622226552).

The spelling of 233312013220 in words is "two hundred thirty-three billion, three hundred twelve million, thirteen thousand, two hundred twenty".