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20223430031112 = 233711241389116731
BaseRepresentation
bin1001001100100101000100…
…10111001111011100001000
32122121100012121111002112020
410212102202113033130020
510122320041041443422
6111002303203044440
74155044306655330
oct446224227173410
978540177432466
1020223430031112
116497788035410
122327529970720
13b390a47b9839
144dcb67dac0c0
152510d026195c
hex1264a25cf708

20223430031112 has 256 divisors, whose sum is σ = 63458877081600. Its totient is φ = 5217550848000.

The previous prime is 20223430031059. The next prime is 20223430031113. The reversal of 20223430031112 is 21113003432202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20223430031113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 173189787 + ... + 173306517.

It is an arithmetic number, because the mean of its divisors is an integer number (247886238600).

Almost surely, 220223430031112 is an apocalyptic number.

20223430031112 is a gapful number since it is divisible by the number (22) 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 20223430031112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31729438540800).

20223430031112 is an abundant number, since it is smaller than the sum of its proper divisors (43235447050488).

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

20223430031112 is a wasteful number, since it uses less digits than its factorization.

20223430031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117388 (or 117384 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20223430031112 its reverse (21113003432202), we get a palindrome (41336433463314).

The spelling of 20223430031112 in words is "twenty trillion, two hundred twenty-three billion, four hundred thirty million, thirty-one thousand, one hundred twelve".