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231332111212332 = 223132677973329401
BaseRepresentation
bin110100100110010100110100…
…010100000101111100101100
31010100002010121120120212112010
4310212110310110011330230
5220310121130432243312
62140000301011041220
766504123240340314
oct6446246424057454
91110063546525463
10231332111212332
1167789440a666a9
1221b41867ba0210
139c106a83a2b00
14411a76912c444
151bb272bde693c
hexd26534505f2c

231332111212332 has 288 divisors, whose sum is σ = 601562774830080. Its totient is φ = 69132384921600.

The previous prime is 231332111212313. The next prime is 231332111212339. The reversal of 231332111212332 is 233212111233132.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 231332111212332.

It is not an unprimeable number, because it can be changed into a prime (231332111212339) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7868156832 + ... + 7868186232.

Almost surely, 2231332111212332 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 231332111212332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300781387415040).

231332111212332 is an abundant number, since it is smaller than the sum of its proper divisors (370230663617748).

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

231332111212332 is a wasteful number, since it uses less digits than its factorization.

231332111212332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30313 (or 30298 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

Adding to 231332111212332 its reverse (233212111233132), we get a palindrome (464544222445464).

The spelling of 231332111212332 in words is "two hundred thirty-one trillion, three hundred thirty-two billion, one hundred eleven million, two hundred twelve thousand, three hundred thirty-two".