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2331312000000 = 210356172857
BaseRepresentation
bin100001111011001101000…
…001100000110000000000
322020212112010211021201220
4201323031001200300000
5301144011333000000
64542553454555040
7330301041016224
oct41731501406000
98225463737656
102331312000000
11819781935135
123179a7808a80
1313bac3505019
1480b9c3a2784
15409995761a0
hex21ecd060c00

2331312000000 has 616 divisors, whose sum is σ = 8226915631632. Its totient is φ = 584908800000.

The previous prime is 2331311999981. The next prime is 2331312000007. The reversal of 2331312000000 is 2131332.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2331312000007) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 815998572 + ... + 816001428.

Almost surely, 22331312000000 is an apocalyptic number.

2331312000000 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 2331312000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4113457815816).

2331312000000 is an abundant number, since it is smaller than the sum of its proper divisors (5895603631632).

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

2331312000000 is an frugal number, since it uses more digits than its factorization.

2331312000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927 (or 2884 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 2331312000000 its reverse (2131332), we get a palindrome (2331314131332).

The spelling of 2331312000000 in words is "two trillion, three hundred thirty-one billion, three hundred twelve million", and thus it is an aban number.