233421323140 has 96 divisors (see below), whose sum is σ = 515361740544. Its totient is φ = 88635655680.

The previous prime is 233421323129. The next prime is 233421323159. The reversal of 233421323140 is 41323124332.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 233421323099 and 233421323108.

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, 92223675 + ... + 92226205.

It is an arithmetic number, because the mean of its divisors is an integer number (5368351464).

Almost surely, 2^233421323140 is an apocalyptic number.

233421323140 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 233421323140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257680870272).

233421323140 is an abundant number, since it is smaller than the sum of its proper divisors (281940417404).

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

233421323140 is a wasteful number, since it uses less digits than its factorization.

233421323140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997 (or 3995 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 233421323140 its reverse (41323124332), we get a palindrome (274744447472).

The spelling of 233421323140 in words is "two hundred thirty-three billion, four hundred twenty-one million, three hundred twenty-three thousand, one hundred forty".