233123131220 has 48 divisors (see below), whose sum is σ = 560044920960. Its totient is φ = 79849444224.

The previous prime is 233123131211. The next prime is 233123131237. The reversal of 233123131220 is 22131321332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 674399 + ... + 959718.

It is an arithmetic number, because the mean of its divisors is an integer number (11667602520).

Almost surely, 2^233123131220 is an apocalyptic number.

233123131220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233123131220 is an abundant number, since it is smaller than the sum of its proper divisors (326921789740).

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

233123131220 is a wasteful number, since it uses less digits than its factorization.

233123131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635152 (or 1635150 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 233123131220 its reverse (22131321332), we get a palindrome (255254452552).

The spelling of 233123131220 in words is "two hundred thirty-three billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty".