233231210321020 has 48 divisors (see below), whose sum is σ = 518599047818880. Its totient is φ = 87804252099584.

The previous prime is 233231210320963. The next prime is 233231210321027. The reversal of 233231210321020 is 20123012132332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233231210321027) 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, 70934502 + ... + 74149618.

It is an arithmetic number, because the mean of its divisors is an integer number (10804146829560).

Almost surely, 2^{233231210321020} is an apocalyptic number.

233231210321020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233231210321020 is an abundant number, since it is smaller than the sum of its proper divisors (285367837497860).

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

233231210321020 is a wasteful number, since it uses less digits than its factorization.

233231210321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3428502 (or 3428500 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 233231210321020 its reverse (20123012132332), we get a palindrome (253354222453352).

The spelling of 233231210321020 in words is "two hundred thirty-three trillion, two hundred thirty-one billion, two hundred ten million, three hundred twenty-one thousand, twenty".