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12203388120 = 23357111777689
BaseRepresentation
bin10110101110110000…
…01110110011011000
31011111110211100101210
423113120032303120
5144443031404440
65334532543120
7611261042010
oct132730166330
934443740353
1012203388120
1151a2549130
122446a81aa0
1311c6337021
1483aa42c40
154b6548a80
hex2d760ecd8

12203388120 has 256 divisors, whose sum is σ = 48329395200. Its totient is φ = 2386575360.

The previous prime is 12203388097. The next prime is 12203388121. The reversal of 12203388120 is 2188330221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203388121) 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, 118236 + ... + 195924.

It is an arithmetic number, because the mean of its divisors is an integer number (188786700).

Almost surely, 212203388120 is an apocalyptic number.

12203388120 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 12203388120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24164697600).

12203388120 is an abundant number, since it is smaller than the sum of its proper divisors (36126007080).

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

12203388120 is a wasteful number, since it uses less digits than its factorization.

12203388120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77738 (or 77734 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 12203388120 in words is "twelve billion, two hundred three million, three hundred eighty-eight thousand, one hundred twenty".