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10231123320 = 233251119912983
BaseRepresentation
bin10011000011101001…
…01000110101111000
3222102000122220201100
421201310220311320
5131423131421240
64411120251400
7511352053605
oct114164506570
928360586640
1010231123320
114380225420
121b96470b60
13c70850b32
146d0b276ac
153ed313e30
hex261d28d78

10231123320 has 192 divisors, whose sum is σ = 36459072000. Its totient is φ = 2467618560.

The previous prime is 10231123307. The next prime is 10231123321. The reversal of 10231123320 is 2332113201.

10231123320 is a `hidden beast` number, since 10 + 2 + 311 + 23 + 320 = 666.

It is a super-3 number, since 3×102311233203 (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10231123293 and 10231123302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231123321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 781549 + ... + 794531.

It is an arithmetic number, because the mean of its divisors is an integer number (189891000).

Almost surely, 210231123320 is an apocalyptic number.

10231123320 is a gapful number since it is divisible by the number (10) 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 10231123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18229536000).

10231123320 is an abundant number, since it is smaller than the sum of its proper divisors (26227948680).

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

10231123320 is a wasteful number, since it uses less digits than its factorization.

10231123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13210 (or 13203 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10231123320 its reverse (2332113201), we get a palindrome (12563236521).

The spelling of 10231123320 in words is "ten billion, two hundred thirty-one million, one hundred twenty-three thousand, three hundred twenty".